Journal Articles

145 „Role of porosity on silica immobilized palladium complexes as recyclable catalysts in the methoxycarbonylation of 1-hexene“, Saphan O. Akiri, Benjamin Heider, Stefan Lach , Christiane Ziegler, Wolfgang Kleist, Stephen O. Ojwach, Microporous and Mesoporous Materials 372 (2024) 113092

https://doi.org/10.1016/j.micromeso.2024.113092

 

144 "Self-Assembly of the Chiral Donor-Acceptor Molecule DCzDCN on Cu(100)", R. Ranecki, B. Baumann, S. Lach, Ch. Ziegler, ACS Appl. Mater. Interfaces 16 (2024) 9108−9116

https://pubs.acs.org/doi/full/10.1021/acsami.3c16918

 

143 „Short communication: a method for cell separation of Ocimum basilicum CMC cells for AFM Measurement“, A. Schmeckebier, C. Ebel, J. Haffelder, C. Müller-Renno, Ch. Ziegler, A. Zayed, J. Stiefelmaier, R. Ulber, Plant Cell, Tissue and Organ Culture (PCTOC) 156 (2024) 86

https://doi.org/10.1007/s11240-024-02708-6

 

142 “Spin-Flip Inelastic Electron Tunneling Spectroscopy on a CuCu4 Metallacrown Complex on Au(111)”, R. Ranecki, S. Lach, A. Lüpke, E. Rentschler, Ch. Ziegler, J. Phys. Chem. C 127 (2023) 13186–13195

https://pubs.acs.org/doi/pdf/10.1021/acs.jpcc.3c01291

 

141 „Tip Modification for Interaction Studies between Polysaccharides and Dental Materials“, S. Ehnert, C. Müller-Renno, M. Hannig, Ch. Ziegler, Physica Status Solidi A 220 (2023) 2200834

https://doi.org/10.1002/pssa.202200834
 

140 "Identification of the Actin‐Binding Region and Binding to Host Plant Apple Actin of Immunodominant Transmembrane Protein of ‘Candidatus Phytoplasma mali", K. Boonrod, L. Kuaguim, M. Braun, Ch. Müller‐Renno, Ch. Ziegler, G. Krczal, Int. J. Mol. Sci. 24 (2) (2023) 968

https://doi.org/10.3390/ijms24020968

 

139 "Competing Intramolecular Superexchange Interactions in the CuFe4 Metallacrown on Au(111)─An Inelastic Tunneling Spectroscopy Study", R. Ranecki, S. Lach,A. Lüpke, A. Athanasopoulou, E. Rentschler, Ch. Ziegler, J. Phys. Chem. C 126 (2022)15907–15914

https://doi.org/10.1021/acs.jpcc.2c02551

 

138 Producing Plant Virus Patterns with Defined 2D Structure“, Ch. Müller-Renno, D. Remmel, M. Braun, K. Boonrod, G. Krczal, Ch. Ziegler, Physica Status Solidi A 218 (2021) 2100259

https://doi.org/10.1002/pssa.202100259

 

137 „Simultaneous Quantification of Total Carbohydrate and Protein Amounts from Aqueous Solutions by the Sulfuric Acid Ultraviolet Absorption Method (SA-UV Method)“,S. Ehnert, J. Seehase, Ch. Müller-Renno, M. Hannig, Ch. Ziegler,Analytica Chimica Acta1174 (2021) 338712

https://doi.org/10.1016/j.aca.2021.338712

 

136 "Bottom-Up Assembly of a Bilayer Structure of Icosahedral Viral Nanoparticles", C. Müller-Renno, V. Rink, M. Ani, M. Braun, K. Boonrod, G. Krczal, Ch. Ziegler, Biointerphases 15 (2020) 041009

https://doi.org/10.1116/6.0000267

 

135 „Fluid-FM as a Tool to study adhesion forces of bacteria-optimization of parameters and comparison to conventional bacterial probe scanning force spectroscopy”, L. Hofherr, C. Müller-Renno, C. Ziegler, PLoS ONE 15 (7) (2020) e0227395

https://doi.org/10.1371/journal.pone.0227395

 

134 "Clostridium Acetobutylicum’s Connecting World: Cell Appendage Formation in Bioelectrochemical Systems", Mareike Engel, André GemündeDirk HoltmannChristine Müller‐RennoChristiane Ziegler, Nils Tippkötter, Roland Ulber, ChemElectroChem 6 (2019) 1-8

https://doi.org/10.1002/celc.201901656

 

133 „Microstructuring of steel surfaces via cold spraying with 316L particles for studying the particle-wall collision behavior“, Paul Breuninger, Fabian Krull, Katharina Huttenlochner, Christine Müller-Renno, Christiane Ziegler, Rolf Merz, Michael Kopnarski, Sergiy Antonyuk, Surface and Coatings Technology379 (2019) 125054

https://doi.org/10.1016/j.surfcoat.2019.125054

 

132 “Monitoring of biofilms grown on differentially structured metallic surfaces using confocal laser scanning microscopy”, Daniel Kleine, Jonas Chodorski, Sayani Mitra, Christin Schlegel, Katharina Huttenlochner, Christine Müller‐Renno, Joydeep Mukherjee, Christiane Ziegler, Roland Ulber, Engineering in Life Sciences 19 (2019) 513-521

https://doi.org/10.1002/elsc.201800176

 

131 "Electronic and Magnetic Properties of a Ferromagnetic Cobalt Surface by Adsorbing Ultrathin Films of Tetracyanoethylen", Stefan Lach, Anna Altenhof, Shengwei Shi, Mats Fahlman, Christiane Ziegler,  Physical Chemistry Chemical Physics 21 (2019) 15833 - 15844

https://doi.org/10.1039/C9CP02205H

 

130 “Two-photon laser lithography in optical metrology”, Julian Hering, Mathias Eifler, Linda Hofherr, Christiane Ziegler, Jörg Seewig, Georg von Freymann, Proc SPIE Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XI 10544 (2018) 1054412

https://doi.org/10.1117/12.2289900

 

129 “Paracoccus seriniphilus adhered on surfaces: Resistance of a seawater bacterium against shear forces under the influence of roughness, surface energy, and zeta potential of the surfaces”, Katharina Huttenlochner, Neda Davoudi, Christin Schlegel, Martin Bohley, Christine Müller-Renno, Jan C. Aurich, Roland Ulber, Christiane Ziegler, Biointerphases 13 (2018) 051003

https://doi.org/10.1116/1.5049226



128 "Determination of the amount of carbohydrates adsorbed on solid substrates", Pariyanka Arenja, Christina Rösch, Katharina Huttenlochner, Christine Müller-Renno, Matthias Hannig, Christiane Ziegler, Physica Status Solidi A 215 (2018) 1700845

https://doi.org/10.1002/pssa.201700845
 

127 "Comparison of Versatile Immobilization Methods for Gram-positive Bacteria on a Silicon Cantilever", Linda Hofherr, Jonas Chodorski, Christine Müller-Renno, Roland Ulber, Christiane Ziegler, Physica Status Solidi A 215 (2018) 1700846

https://doi.org/10.1002/pssa.201700846



126 “Analyzing the Influence of Microstructured Surfaces on the Lactic Acid Production of Lactobacillus delbrueckii lactis in a flow-through cell system”, C. Schlegel, J. Chodorski, N. Davoudi, K. Huttenlochner, M. Bohley, I. Reichenbach, S. Buhl, P. Breuninger, C. Müller-Renno, J.C. Aurich, S. Antonyuk, C. Ziegler, R. Ulber, Engineering in Life Sciences 17 (2017)  865-873

https://doi.org/10.1002/elsc.201700045

 

125 “Removing biofilms from stainless steel without changing surface properties relevant for bacterial attachment”, K. Huttenlochner, R. Merz, J. Chodorski, B. Merz, C. Schlegel, C. Müller-Renno, R. Ulber, M. Kopnarski, Ch. Ziegler, Biointerphases 12 (2) (2017) 02C404

https://doi.org/10.1116/1.4982196


124 “A simple method to estimate the isoelectric point of modified Tomato bushy stunt virus (TBSV) particles”, M. Braun, W. Gebauer, G. Krczal, Ch. Ziegler, Ch. Müller-Renno, K. Boonrod, Electrophoresis 38 (2017) 2771-2776

https://doi.org/10.1002/elps.201700209


123 "Adhesion forces of the sea-water bacterium Paracoccus seriniphilus on titanium: Influence of microstructures and environmental conditions," Neda Davoudi, Katharina Huttenlochner, Jonas Chodorski, Christin Schlegel, Martin Bohley, Christine Müller-Renno, Jan. C. Aurich, Roland Ulber, Christiane Ziegler, Biointerphases 12 (2017) 05G606

https://doi.org/10.1116/1.5002676


122 „Electrostatic conditions define the 2D self-assembly of tomato bushy stunt viruses on solid surfaces“, Veronika Rink, Christine Müller-Renno, Christiane Ziegler, Mario Braun, Kajohn Boonrod, Gabriele Krczal, Biointerphases 12 (2017) 04E402

http://dx.doi.org/10.1116/1.4986055
 

121 Ti surface modification by cold spraying with TiO2 microparticles“, Kilian Schmidt, Sebastian Buhl, Neda Davoudi, Claudia Godard, Rolf Merz, Indek Raid, Eberhard Kerscher, Michael Kopnarski, Christine Müller-Renno, Surface and Coatings Technology 309 (2017)  749–758

https://doi.org/10.1016/j.surfcoat.2016.10.091
 

120 „Albumin-Lysozyme Interactions: Cooperative Adsorption on Titanium and Enzymatic Activity“, Ch. Rösch, F. Kratz, Th. Hering, S. Trautmann, N. Umanskaya, N. Tippkötter, Ch. Müller-Renno, R. Ulber, M. Hannig, Ch. Ziegler, Colloids and Surfaces B: Biointerfaces 149 (2017) 115–121

http://dx.doi.org/10.1016/j.colsurfb.2016.09.048

 

119 „Chloroperoxidase production by Caldariomyces fumago biofilms“, M. Huster, C. Müller-Renno, C. Ziegler, C. Schlegel, R. Ulber, K. Muffler, Eng. Life Sci. 16 (2016) 88-92

http://dx.doi.org/10.1002/elsc.201500032

 

118 “Investigation of loosely and firmly bound albumin and lysozyme layers on dental materials“, F. Kratz, S. Trautmann, N. Umanskaya, Ch. Müller-Renno, M. Hannig, Ch. Ziegler, Phys. Status Solidi A 213 (2016) 1486–1493

http://dx.doi.org/10.1002/pssa.201532769

 

117 "Self-assembly of tomato bushy stunt  viruses on silicon under the influence  of the drop shape, drop volume and the virus concentration", V. Rink, M. Braun, K. Boonrod, C. Müller-Renno, G. Krczal, Ch. Ziegler, Phys. Status Solidi C 13 (2016) 163–166

http://dx.doi.org/10.1002/pssc.201600011

 

116 “Cleaning of biomaterial surfaces: Protein removal by different solvents”, F. Kratz, S. Grass, N. Umanskaya, C. Scheibe, C. Müller-Renno, N. Davoudi, M. Hannig, Ch. Ziegler,  Colloids and Surfaces B: Biointerfaces 128 (2015) 28–35

https://doi.org/10.1016/j.colsurfb.2015.02.016

 

115 “Photoemission Studies on N-Substituted Dithienylated Phenothiazines”, M. Fingerle, M. Hemgesberg, Schmitt, S. Lach, M. Gerhards, W. R. Thiel, Ch. Ziegler, ChemPhysChem 16 (2015) 1996–2005

https://doi.org/10.1002/cphc.201500095

 

114 “Symmetrically substituted phenothiazine as prospective candidate for UV responsive dye sensitized solar cells”, M. Fingerle, M. Hemgesberg, S. Lach, W. R. Thiel, Ch. Ziegler, Thin Solid Films 591 Part A (2015) 8–12

doi.org10.1016/j.tsf.2015.07.032

 

113 „Consequences of Hydrocarbon Contamination for Wettability and Protein Adsorption on Graphite Surfaces”, C. Mücksch, C. Rösch, C. Müller−Renno, C. Ziegler, H. Urbassek, J. Phys. Chem. C 119 (2015) 12496–12501

https://doi.org/10.1021/acs.jpcc.5b02948
 

112 “Cleaning of titanium substrates after application in a bioreactor”, M. Fingerle, O. Köhler, Ch. Rösch, F. Kratz, Ch. Scheibe, N. Davoudi, Ch. Müller-Renno, Ch. Ziegler, M. Huster, Ch. Schlegel, R. Ulber, M. Bohley, J. C. Aurich, Biointerphases 10 (2015) 019007

https://doi.org/10.1116/1.4907754

 

111 “Nanomechanical properties of the sea-water bacterium Paracoccus seriniphilus-A scanning force microscopy approach”, N. Davoudi, Ch. Müller-Renno, Ch. Ziegler, l. Raid, J. Seewig, Ch. Schlegel, K. Muffler, R. Ulber, Biointerphases 10 (2015) 019004

https://doi.org/10.1116/1.4906862
 

110 „Werkzeug-Werkstück-Interaktion beim Mikrofräsen“, M. Bohley, R. Merz, C. Müller-Renno, I.G. Reichenbach, N. Davoudi, C. Ziegler, M. Kopnarski, J.C. Aurich, wt-online 9-2014 (2014) 586-591

 

109 “Influence of sodium fluoride on the BSA adsorption on titanium”, F. Kratz, C. Müller-Renno, N. Davoudi, N. Umanskaya, S. Grass, M. Hannig, Ch. Ziegler, Biomed Tech 59 (2014) S81-S84

https://doi.org/10.1515/bmt-2014-5000

 

108 “Energy level alignment at the porphyrin/cobaltocene interface: From transfer doping to cobalt intercalation”, Y. Smets, K. J. Rietwyk, M. Fingerle, F. Schmitt, S. Lach, L. Ley, Ch. Ziegler, Ch. I. Pakes, Organic Electronics 15 (2014) 531–536

https://doi.org/10.1016/j.orgel.2013.12.014

 

107 "The scanning force microscope in bacterial cell investigations", C. Müller, Ch. Ziegler, Physica Status Solidi A 210 (2013) 846-852

https://doi.org/10.1002/pssa.201200768

 

106 “Charge-induced distortion and stabilization of surface transfer doped porphyrin films“, Y. Smets, Ch. Stark, S. Lach, F. Schmitt, Ch. Wright, M. Wanke, L. Ley, Ch. Ziegler, Ch. Pakes, J. Chem. Phys. 139 (2013) 044703

https://doi.org/10.1063/1.4815978

 

105 “Doping efficiency and energy-level scheme in C60F48-doped zinctetraphenylporphyrin Films”, Y. Smets, Ch. B. Stark, F. Schmitt, M. T. Edmonds, S. Lach, Ch. A. Wright, D. P. Langley, K. J. Rietwyk, A. Schenk, A. Tadich, M. Wanke, Ch. Ziegler, L. Ley, Ch. I. Pakes, Organic Electronics 14 (2013) 169–174

https://doi.org/10.1016/j.orgel.2012.11.007
 

104 “Characterization of protein films on dental materials: Bicinchoninic acid assay (BCA) studies on loosely and firmly adsorbed protein layers”, F. Kratz, Ch. Müller, N. Körber, N. Umanskaya, M. Hannig, Ch. Ziegler, Physica Status Solidi A 210 No. 5 (2013) 964–967

https://doi.org/10.1002/pssa.201200642

 

103 ”Influence of Protein Immobilization on Protein-Protein Interaction Measured by Scanning Force Spectroscopy”, Ch. Rösch, Ch. Huber, Ch. Müller, N. Umanskaya, M. Hannig, Ch.  Ziegler, Physica Status Solidi A 210 No. 5 (2013) 945–951

https://doi.org/10.1002/pssa.201200680

 

102 “Initial Bioadhesion on Medical Glass Packaging Materials Investigated by Dynamic Contact Angle Measurements”, O. Köhler, Ch. Müller, A. Hermsdörfer, H. Röhl, Ch. Ziegler, Physica Status Solidi A 210 No. 5 (2013) 983–987

https://doi.org/10.1002/pssa.201200764

 

101 “Properties and Characteristics of Wet (HF) and Dry (RIE) Etched Borosilicate Glass”, J. Blass, O. Köhler, M. Fingerle, C. Müller, C. Ziegler, Physica Status Solidi A 210  No. 5 (2013) 988–993

https://doi.org/10.1002/pssa.201200769

 

100 “Metal–Organic Hybrid Interface States of A Ferromagnet/Organic Semiconductor Hybrid Junction as Basis For Engineering Spin Injection in Organic Spintronics”, S. Lach, A. Altenhof, K. Tarafder, F. Schmitt, E. Ali, M. Vogel, J. Sauther, P.M. Oppeneer, Ch. Ziegler, Advanced Functional Materials 22 (2012) 989-997

https://doi.org/10.1002/adfm.201102297

 

99 “Ultra-fast photo-patterning of hydroxamic acid layers adsorbed on TiAlN: The challenge of modeling thermally induced desorption”, M. Hemgesberg, S. Schütz, C. Müller, M. Schlörholz, H. Latzel, Y. Sun, Ch. Ziegler, W. Thiel, Applied Surface Science 259 (2012) 406-415

https://doi.org/10.1016/j.apsusc.2012.07.059

 

98 “Influence of the surface termination of ultrananocrystalline diamond/amorphous carbon composite films on their interaction with neuron”, A. Voss, H. Wie, C. Müller, C. Popov, W. Kulisch, G. Ceccone, C. Ziegler, M. Stengl, J.P. Reitmaier; Diamond &  Related Materials 26 (2012) 60-65 

https://doi.org/10.1016/j.diamond.2012.04.005

 

97 “Tomato bushy stunt viruses (TBSV) in nanotechnology investigated by scanning force and scanning electron microscopy”, A. Lüders, C. Müller, K. Boonrod, G. Krczal, Ch. Ziegler, Colloids and Surfaces B: Biointerfaces 91 (2012) 154-161

https://doi.org/10.1016/j.colsurfb.2011.10.048

 

96 “Temperature-dependent grain growth and phase transformation in mixed anatase-rutile nanocrystalline TiO2 films”, H. Gnaser, J. Lösch, A. Orendorz, Ch. Ziegler, Physica Status Solidi A 208 (2011) 1635

https://doi.org/10.1002/pssa.201026784

 

95 "Lithographically Structured Biological Recognition Structures for Immunosensing and Single Cell Analytics", O. Köhler, P. Kowalewski, Ch. Ziegler, Physics Status Solidi A 208 Nr. 6 (2011) 1275-1278

https://doi.org/10.1002/pssa.201000945

 

94 “BSA adsorption on titanium: ToF-SIMS investigation of the surface coverage as a function of protein concentration and pH-value”, M. Wilhelmi, C. Müller, C. Ziegler, M. Kopnarski, Anal. Bioanal. Chem. 400 (2011) 697-701

https://doi.org/10.1007/s00216-011-4833-6

 

93 “Characterization of the Interface Interaction of Cobalt on Top of Copper- and Iron-Phthalocyanine”, F. Schmitt, J. Sauther, S. Lach, Ch. Ziegler,  Anal. Bioanal. Chem. 400 (2011) 665-671

https://doi.org/10.1007/s00216-011-4691-2

 

92 “Photoionization cross section weighted DFT simulations as promising tool for the investigation of the electronic structure of open shell metal-phthalocyanines”,M. Vogel , F. Schmitt, J. Sauther, B. Baumann, A. Altenhof , S. Lach, Ch. Ziegler, Anal. Bioanal. Chem. 400 (2011) 673-678

https://doi.org/10.1007/s00216-011-4785-x

 

91 „Protein Adhesion on Dental Surfaces – a Combined Surface Analytical Approach”, C. Müller, J. Wald, W. Hoth-Hannig, N. Umanskaya, D. Scholz, M. Hannig, Ch. Ziegler, Anal. Bioanal. Chem. 400 (2011) 679-689

https://doi.org/10.1007/s00216-010-4613-8

 

90 "Flexible, all-polymer microelectrode arrays for the capture of cardiac and neuronal signals”, A. Blau, A. Murr, S. Wolff, E. Sernagor, P. Medini, G. Iurilli, Ch. Ziegler, F. Benfenati, Biomaterials 32 (2011) 1778-1786

https://doi.org/10.1016/j.biomaterials.2010.11.014

 

89 “Indirect Magnetic Coupling of Manganese-Porphyrin to Ferromagnetic Cobalt Substrate”, D. Chylarecka, T. K. Kim, K. Tarafder, K. Müller, K. Gödel, I. Czekaj, Ch. Wäckerlin, M. Cinchetti, Md. E. Ali, C. Piamonteze, F. Schmitt, J.-P. Wuestenberg, Ch. Ziegler, F. Nolting, M. Aeschlimann, P. M. Oppeneer, N. Ballav, T. A. Jung, The Journal of Physical Chemistry C 115 (2011), 1295-1301

https://doi.org/10.1021/jp106822s

 

88 “Spatially controlled cell adhesion on three-dimensional substrates”, Ch. Richter, M. Reinhardt, S. Giselbrecht, D. Leisen, V. Trouillet, R. Truckenmüller, A. Blau, Ch. Ziegler, A. Welle, Biomedical Microdevices 12 (2010) 787-795

https://doi.org/10.1007/s10544-010-9433-2

 

87 "Lithographic Structures with Attached Antibodies for Columnar Immunosensors", O. Köhler, I. Steinmann, Ch. Ziegler, Sensor Letters 8 (2010) 747-751

https://doi.org/10.1166/sl.2010.1341

 

86 “ToF-SIMS investigations of adsorbed proteins on dental Titanium”, J. Wald, C. Müller, M. Wahl, W. Hoth-Hannig, M. Hannig, M. Kopnarski, Ch. Ziegler, Physica Status Solidi A 207 (2010) 831–836

https://doi.org/10.1002/pssa.200983308

 

85 “Investigation of Prothrombin Time in Human Whole-Blood Samples with a Quartz Crystal Biosensor“, L. Müller, S. Sinn, H. Drechsel, Ch.  Ziegler, H.-P. Wendel, H.  Northoff, F.  K. Gehring, Analytical Chemistry 82 (2010) 2164

https://doi.org/10.1021/ac100170q

 

84 “Initial bioadhesion on dental materials as a function of contact time, pH, surface wettability and isoelectric point”, C. Müller, A. Lüders, W. Hoth-Hannig, M. Hannig, Ch. Ziegler, Langmuir 26 (2010) 4136-4141

https://doi.org/10.1021/la903299y

 

83 "Gas phase and bulk ultraviolet photoemission spectroscopy of 3,4,9,10-perylene-tetracarboxylic dianhydride, 1,4,5,8-naphthalenetetracarboxylic dianhydride, and 1,8-naphthalene-dicarboxylic anhydride", J. Sauther, J. Wüsten, S. Lach, Ch. Ziegler, J. Chem. Phys. 131 (2009) 034711

https://doi.org/10.1063/1.3180818

 

82 "Replica-molded poly(dimethylsiloxane) culture vessel lids attenuate osmotic drift in long-term cell culturing”, A. Blau, T. Neumann, Ch. Ziegler, F. Benfenati, Journal of Biosciences 34, 1 (2009) 59-69

https://doi.org/10.1007/s12038-009-0009-3

 

81 “Hot embossing of pyramidal microstructures in PMMA for cell culture”, Ch. Ziegler, P. Schneider, C. Steitz, K.  H. Schäfer, Physica Status Solidi (A) 206 (2009) 501-507

https://doi.org/10.1002/pssa.200880476

 

80 “Protein films adsorbed on experimental dental materials: ToF-SIMS with multivariate data analysis”, F. Bernsmann, N. Lawrence, M. Hannig, Ch. Ziegler, H. Gnaser, Anal Bioanal Chem 391 (2008) 545-554

https://doi.org/10.1007/s00216-008-2014-z

 

79 “Photocatalytic decomposition of methylene blue and 4-chlorophenol on nanocrystalline TiO2 films under UV illumination: A ToF-SIMS study”, A. Orendorz, Ch. Ziegler, H. Gnaser, Applied Surface Science 255 (2008) 1011-1014

https://doi.org/10.1016/j.apsusc.2008.05.023

 

78 “Hot-electron dynamics in thin films of sodium-doped perylene-3,4,9,10-tetracarboxylic dianhydride”, J. Wüsten, S. Berger, M. Salomo, A. Mönnich, M. Bauer, S. Lach, M. Aeschlimann, Ch. Ziegler, Physical Review B 78 (2008) 195326

https://doi.org/10.1103/PhysRevB.78.195326

 

77 “Determination of spin injection and transport in a ferromagnet/organic semiconductor heterojunction by two-photon photoemission”, M. Cinchetti, K. Heimer, J.-P. Wüstenberg, O. Andreyev, M. Bauer, S. Lach, Ch. Ziegler, Y. Gao, M. Aeschlimann, Nature Materials 8 (2009) 115 – 119

https://doi.org/10.1038/nmat2334

 

76 “Multielectrode array recordings reveal physiological diversity of intrinsically photosensitive retinal ganglion cells in the chick embryo”, Ch. Ziegler, T. Neumann, A. Blau, Brain Research 1207C (2008) 120-127

https://doi.org/10.1016/j.brainres.2008.02.039

 

75 "Phase Transformation and Particle Growth in Nanocrystalline Anatase TiO2 Films Analyzed by XRD and Raman Spectroscopy" A. Orendorz, A. Brodyanski, J. Lösch, L.H. Bai, Z.H. Chen, Y.K. Le, Ch. Ziegler, H. Gnaser, Surface Science 601 (2007) 4390-4394

https://doi.org/10.1016/j.susc.2007.04.127

 

74 "Alkali Metals in Perylene-3,4,9,10-Tetracarboxylicdianhydride Thin Films", J. Wüsten. K. Heimer, S. Lach, Ch. Ziegler,  J. Appl. Phys. 102, 2 (2007) 023708

https://doi.org/10.1063/1.2756513

 

73 "Shifts of Frequency and Bandwidth of Quartz Crystal Resonators Coated with Samples of Finite Lateral Size", M. Herrscher, Ch. Ziegler, D. Johannsmann,  J. Appl. Phys. 101 (2007) 114909

https://doi.org/10.1063/1.2729451

 

72 “A CMOS-based Microelectrode Array for Interaction with Neuronal Cultures“, S. Hafizovic, F. Heer, T. Ugniwenko, U. Frey, A. Blau, C. Ziegler, A. Hierlemann,  Journal of  Neuroscience Methods 164 (2007) 93-106

https://doi.org/10.1016/j.jneumeth.2007.04.006

 

71 "Structural Investigation of Pristine and Annealed Nanocrystalline TiO2 Thin Films by X-Ray Diffraction and Raman Spectroscopy", A. Orendorz, A. Brodyanski, J. Lösch, L.H. Bai, Z.H. Chen, Y.K. Le, Ch. Ziegler, H. Gnaser, Physica Status Solidi C 4 No. 6 (2007) 1822-1829

https://doi.org/10.1002/pssc.200675230

 

70 “Gas Phase and Bulk Photoemission Spectra of Highest Occupied Molecular Orbitals of pi-conjugated Organic Molecules", J. Sauther, J. Wüsten, S. Lach, Ch. Ziegler, Physica Status Solidi C 4 No. 6 (2007) 1844-1851

https://doi.org/10.1002/pssc.200675223

 

69 "Interaction of Alkali Metals with Perylene-3,4,9,10-Tetracarboxylicdianhydride (PTCDA) Thin Films Studied by IR-Spectroscopy", K. Heimer, J. Wüsten, S. Lach, Ch. Ziegler,  J. Chem. Phys. 126 (2007) 164709

https://doi.org/10.1063/1.2722748

 

68 "Single-chip Microelectronic System to Interface with Living Cells", F. Heer, S. Hafizovic, T. Ugniwenko, U. Frey, W. Franks, E. Perriard, J.C. Perriard, A. Blau, Ch. Ziegler, A. Hierlemann, Biosensors and Bioelectronics 22 (2007) 2546-2553

https://doi.org/10.1016/j.bios.2006.10.003

 

67 "Structural transformations in nanocrystalline anatase TiO2 films upon annealing in air", A. Orendorz, A. Brodyanski, J. Lösch, L.H. Bai, Z.H. Chen, Y.K. Le, Ch. Ziegler, H. Gnaser, Surface Science 600 (2006) 4347-4351

https://doi.org/10.1016/j.susc.2005.12.083

 

66 "CMOS Microelectrode Array for Bidirectional Interaction With Neuronal Networks", F. Heer, S. Hafizovic, W. Franks, A. Blau, Ch. Ziegler, A. Hierlemann, IEEE Journal of Solid-State Circuits 41 (2006) Number 7, 1620-1629

https://doi.org/10.1109/JSSC.2006.873677

 

65 "Electron transport in pristine and alkali metal doped perylene-3,4,9,10-tetracarboxylicdianhydride (PTCDA) thin films", J. Wüsten, Th. Ertl. Ch. Ziegler, Phys. Rev. B 74 (2006) 125205ff.

https://doi.org/10.1103/PhysRevB.74.125205

 

64 "CMOS bidirectional electrode array for electrogenic cells", S. Hafizovic, F. Heer, W. Franks, F. Greve, A. Blau, C. Ziegler, A. Hierlemann, Proc. IEEE-MEMS 2006, Istanbul, Turkey

https://doi.org/10.1109/MEMSYS.2006.1627722

 

63 "TOF-SIMS study of photocatalytic decomposition reactions on nanocrystalline TiO2 films", H. Gnaser, A. Orendorz, Ch. Ziegler, E. Rowlett, W. Bock, Appl. Surface Science 252 (2006) 6996

https://doi.org/10.1016/j.apsusc.2006.02.216

 

62 "Characterization of Cu/CeO2/g-Al2O3 Thin Film Catalysts by Thermal Desorption Spectroscopy", Y. Men, H. Gnaser, Ch. Ziegler, R. Zapf, V. Hessel, G. Kolb, Catalysis Letters, Vol. 105 (2005) Nos. 1-2

https://doi.org/10.1007/s10562-005-8002-4

 

61 "A highly sensitive self-oscillating cantilever array for the quantitative and qualitative analysis of organic vapour mixtures", Ch. Ziegler, D. Then, A. Vidic, Sensors & Actuators B 117 (2006) 1-9

https://doi.org/10.1016/j.snb.2005.07.069

 

60 "Interaction of Alkali Metals with PTCDA Thin Films", J. Wüsten, S. Berger, K. Heimer, S. Lach, Ch. Ziegler, J. Appl. Phys. 98 (2005) 013705ff.

https://doi.org/10.1063/1.1935763

 

59 "Post deposition purification of PTCDA thin films", J. Wüsten, Th. Ertl, S. Lach, Ch. Ziegler, Appl. Surf. Sci. 252 (2005) Issue 1, 104-107

https://doi.org/10.1016/j.apsusc.2005.01.105

 

58  "Nanocrystalline anatase TiO2 thin films: preparation and crystallite size-dependent properties", B. Huber, A. Brodyanski, M. Scheib, A. Orendorz, Ch. Ziegler, H. Gnaser, Thin Solid Films 472 (2005) 114

https://doi.org/10.1016/j.tsf.2004.06.120

 

57 "IR and SFM Study of PTCDA Thin Films on Different Substrates", Steffen Berger, Kathrin Heimer, H.G. Mack, Christiane Ziegler. Appl. Surf. Sci., Vol. 252 (2005) Issue 1, 81-84

https://doi.org/10.1016/j.apsusc.2005.02.001

 

56 "Initial Bioadhesion on Surfaces in the Oral Cavity Investigated by Scanning Force Microscopy", N. Schwender, K. Huber, F. Al Marrawi, M. Hannig, Ch. Ziegler, Appl. Surf. Sci., 252 (2005) Issue 1, 117-122

https://doi.org/10.1016/j.apsusc.2005.02.042

 

55 "Photoelectron spectroscopy of nanocrystalline anatase TiO2 films", Adam Orendorz, Jens Wüsten, Christiane Ziegler, Hubert Gnaser, Appl. Surf. Sci., 252 (2005) Issue 1, 85-88

https://doi.org/10.1016/j.apsusc.2005.02.002
 

54 "Steam Reforming of Methanol over Cu/CeO2/g-Al2O3 Catalysts in a Microchannel Reactor", Yong Men, Hubert Gnaser, Ralf Zapf, Volker Hessel, Christiane Ziegler, Gunther Kolb, Applied Catalysis A: General 277 (2004) 83-90

https://doi.org/10.1016/j.apcata.2004.08.035

 

53 "Parallel Screening of Cu/CeO2/-Al2O3 Catalysts for Steam Reforming of Methanol in a 10-channel Micro-Structured Reactor", Y. Men, H. Gnaser, R. Zapf, V. Hessel, Ch. Ziegler, Catalysis Communications 5 (2004) 671

https://doi.org/10.1016/j.catcom.2004.08.008

 

52 "Secondary-ion mass spectrometry (SIMS) analysis of catalyst coatings used in microreactors", H. Gnaser, W. Bock, E. Rowlett, Y. Men, C. Ziegler, R. Zapf, V. Hessel, Nucl. Instrum. Methods B 219-220 (2004) 880-885; (Erratum) B226 (2004) 468

https://doi.org/10.1016/j.nimb.2004.01.181

 

51 "Electrical Properties of Nanocrystalline Anatase TiO2 Thin Films with Different Crystallite Size", B. Huber, H. Gnaser, Ch. Ziegler, Surface Science 566-568 (2004) 419-424

https://doi.org/10.1016/j.susc.2004.05.081

 

50 "CMOS microelectrode array for the monitoring of electrogenic cells", F. Heer, W. Franks, A. Blau, S. Taschini, C. Ziegler, A. Hierlemann, H. Baltes, Biosensors and Bioelectronics 20 (2004) 358-366

https://doi.org/10.1016/j.bios.2004.02.006

 

49 "A New Cantilever System for Gas and Liquid Sensing", A. Vidic, D. Then, Ch. Ziegler, Ultramicroscopy 97 (2003) 407-416

https://doi.org/10.1016/S0304-3991(03)00068-8

 

48 "Adsorption/desorption Studies on Nanocrystalline Alumina Surfaces", Y. Men, H. Gnaser, Ch. Ziegler, Analyt. Bioanalyt. Chem. 375 (2003) 912-916

https://doi.org/10.1007/s00216-003-1760-1

 

47 "Scanning Force Techniques to Monitor Time Dependent Changes in Topography and Adhesion Force of Proteins on Surfaces", M. Mondon, S. Berger, Ch. Ziegler, Analyt. Bioanalyt. Chem. 375 (2003) 849-855

https://doi.org/10.1007/s00216-003-1751-2

 

46 "Characterization of Nanocrystalline Anatase TiO2-Films", B. Huber, H. Gnaser, Ch. Ziegler, Analyt. Bioanalyt. Chem. 375 (2003) 917-923

https://doi.org/10.1007/s00216-003-1800-x

 

45 "Protein Adsorption on Surfaces: Dynamic Contact Angle (DCA) and Quartz Crystal Microbalance (QCM) Measurements", H. Stadler, M. Mondon, Ch. Ziegler, Analyt. Bioanalyt. Chem. 375 (2003) 53-61

https://doi.org/10.1007/s00216-002-1664-5

 

44 "Reversible Intercalation of Volatile Amines into Stacks of Soluble Phthalocyanines", Ch. Fietzek, M. Seiler, B. Görlach, P. Schütz, U. Weimar, M. Hanack, Ch. Ziegler, H. Bertagnolli, Journal Materials Chemistry 12 (2002) 2305-2311

https://doi.org/10.1039/B200725H

 

43 b. “Cambiamenti negli  angoli di contatto dell‘acqua durante  la prima fase d’indurimento dei materiali per impronte dentali”, M. Mondon, Ch. Ziegler, La Rivista Internazionale di Odontoiatria Protesica 16 (2003) 49-53 

 

43 a. "Changes in Water Contact Angles During the First Phase of Setting of Dental Impression Materials", M. Mondon, Ch. Ziegler, The International Journal of Prosthodontics 16 (2003) 49-53

 

42 "Adsorption/desorption phenomena on pure and Teflon AF-coated titania surfaces studied by dynamic contact angle analysis", F. Rupp, D. Axmann, Ch. Ziegler, J. Geis-Gerstorfer, J. Biomedical Materials Research 62 (2002) 567-578.

https://doi.org/10.1002/jbm.10198

 

41 "Viscosity force of the fly's pad secretion measured by atomic force
microscopy", H. Stadler, M. Mondon, Wallentin, J., Y. Jiao, Ch. Ziegler, S.N. Gorb, BIONA-report 15 (2001) 340-344

 

40 " Promotion of Neural Cell Adhesion by Electrochemically Generated and Functionalized Polymer Films", A. Blau, C. Weinl, J. Mack, S. Kienle, G. Jung, Ch. Ziegler, Journal of Neuroscience Methods, 112 (2001) 65-73

https://doi.org/10.1016/S0165-0270(01)00458-7

 

39 "Prototype of a Novel Autonomous Perfusion Chamber for Long-term Culturing and In-situ Investigation of Various Cell Types", A. Blau, Ch. Ziegler, Journal of Biochemical and Biophysical Methods 50 (2001) 15-27

https://doi.org/10.1016/S0165-022X(01)00163-4

 

38 "Preparation of Highly Ordered Quinquethiophene Thin Films on TiO2 Substrates", E. Müller, Ch Ziegler, Journal of Materials Chemistry, 10 (2000) 47-53

https://doi.org/10.1039/A902471I

 

37 "Room Temperature Adsorption of Aniline (C6H5NH2) on Si(100)2x1 Observed by Scanning Tunneling Microscopy", R.-M. Rummel, Ch. Ziegler, Surf. Sci. 418 (1998) 303-313

https://doi.org/10.1016/S0039-6028(98)00726-2

 

36 "Interface Analysis of New Tooth Filling Materials", Ch. Ziegler, B. Reusch, J. Geis-Gerstorfer, Fres. Z. Analyt. Chem. 361 (1998) 547-553

https://doi.org/10.1007/s002160050944

 

35 "Interaction of Na with Sexithiophene Thin Films", J. Murr, Ch. Ziegler, Phys. Rev. B 57 (1998) 7299-7304

https://doi.org/10.1103/PhysRevB.57.7299

 

34 "Scanning Probe Microscopy on New Dental Alloys", B. Reusch, J. Geis-Gerstorfer, Ch. Ziegler, Appl. Phys. A 66 (1998) S805-S808

https://doi.org/10.1007/s003390051246

 

33 "Self-assembly of -Functionalized Terthiophenes on Gold", B. Liedberg, Z. Yang, I. Engquist, M. Wirde, U. Gelius, R.-M. Rummel, C. Ziegler, W. Göpel, G. Götz, P. Bäuerle, J. Phys. Chem. B 101 (1997) 5951-5962

https://doi.org/10.1021/jp970229

 

32 "Natural Neural Networks for Quantitative Sensing of Neurochemicals: an Artificial Neural Network Analysis", Ch. Ziegler, A. Harsch, W. Göpel, Sensors and Actuators B65 (2000) 160-162

https://doi.org/10.1016/S0925-4005(99)00343-3

 

31 "Strychnine Analysis with Neuronal Networks in vitro: Extracellular Array Recording of Network Responses", A. Harsch, Ch. Ziegler, W. Göpel, Biosensors and Bioelectronics 12 (1997) 827-835

https://doi.org/10.1016/S0956-5663(97)00048-1

 

30 "Characterization and Optimization of Microelectrode Arrays for In-vivo Nerve Signal Recording and Stimulation", A. Blau, Ch. Ziegler, M. Heyer, F. Endres, G. Schwitzgebel, T. Matthies, T. Stieglitz, J.U. Meyer, W. Göpel, Biosensors and Bioelectronics 12 (1997) 883-892

https://doi.org/10.1016/S0956-5663(97)00017-1

 

29 "Thin Film Preparation of Oligomeric Si-Phthalocyanines: Thermal Stability and Sublimation Behavior", B. Reusch, Ch. Ziegler, T.G. Kwag, M.E. Kenney, W. Göpel, Thin Solid Films 299 (1997) 63-66

https://doi.org/10.1016/S0040-6090(96)08946-8

 

28 "Interface Analysis of Noble Dental Casting Alloys", B. Reusch, J. Geis-Gerstorfer, Ch. Ziegler, Fres. Z. Analyt. Chem. 358 (1997) 64-66

https://doi.org/10.1007/s002160050346

 

27 "Thermal Stability and Sublimation Behavior of (GaPcF)n, (AlPcF)n and the 1:1 Copolymer", D. Martin, Ch. Ziegler, W. Göpel, Materials Research Bulletin 31 (1996) 1149-1157

https://doi.org/10.1016/0025-5408(96)00108-0

 

26 "Characterization and Simulation of Organic Adsorbates on the Si(100)(2x1)-Surface Using Photoelectron-Spectroscopy and Quantum Mechanical Calculations", Th. Kugler, Ch. Ziegler, W. Göpel, Mat. Sci. Eng. B37 (1996) 112-115

https://doi.org/10.1016/0921-5107(95)01466-7

 

25 "Synthesis of Polysiloxane-Bound (Ether-phosphine)palladium Complexes. Stoichiometric and Catalytic Reactions in Interphases", E. Lindner, R. Schreiber, Th. Schneller, P. Wegner, H.A. Mayer, W. Göpel, Ch. Ziegler, Inorg. Chem. 35 (1996) 514-525

https://doi.org/10.1021/ic950412m

 

24 "HREELS to Identify Electronic Structures of Organic Thin Films", D. Oeter, Ch. Ziegler, W. Göpel, Conf. Proc. Angewandte Oberflächenanalytik, Kaiserslautern (D) 1994, und Fres. Z. Analyt. Chem. 353 (1995) 360-363

https://doi.org/10.1007/BF00322069

 

23 "HREELS and UV/VIS Spectroscopic Studies on the Electronic Structure of Oligothiophene Thin Films", H.-J. Egelhaaf, D. Oelkrug, D. Oeter, Ch. Ziegler, W. Göpel, Conf. Proc. EUCMOS, Essen (D) 1994, und J. Mol. Struct. 348 (1995) 405-408

https://doi.org/10.1016/0022-2860(95)08674-K

 

22 "Atomically Resolved Scanning Tunneling Spectroscopy on Si(001)-2x1 Asymmetric Dimers", A.W. Munz, Ch. Ziegler, W. Göpel, Phys. Rev. Lett. 74 (1995) 2244-2247

https://doi.org/10.1103/PhysRevLett.74.2244

 

21 "Thermal Etching of Si(001): A STM Study", A.W. Munz, Ch. Ziegler, W. Göpel, Surf. Sci. 325 (1995) 177-184

https://doi.org/10.1016/0039-6028(94)00765-9

 

20 "Spectroscopic and Electrical Investigations of Undoped and Doped -Oligothiophene Thin Films", D. Oeter, Ch. Ziegler, W. Göpel, H. Haarmann, Conf. Proc. E-MRS Spring Meeting 1994, Straßburg (F), und Synth. Met. 67 (1994) 267-271

https://doi.org/10.1016/0379-6779(94)90054-X

 

19 "Highly Ordered Ultra-thin 5-Thiophene Films on SiO2 and Si(100)+O(N2O)", O. Böhme, Ch. Ziegler, W. Göpel, Conf. Proc. E-MRS Spring Meeting 1994, Straßburg (F), und Synth. Met. 67 (1994) 87-92

https://doi.org/10.1016/0379-6779(94)90016-7

 

18 "Electronic Transitions in -Oligothiophene Thin Films: Comparison of UV/VIS and HREELS Investigations", D. Oeter, H.-J. Egelhaaf, Ch. Ziegler, D. Oelkrug, W. Göpel, J. Chem. Phys. 101 (1994) 6344-6352

https://doi.org/10.1063/1.468458

 

17 "X-ray Absorption Study of Highly Oriented Poly(tetrafluorethylene) Thin Films", Ch. Ziegler, Th. Schedel-Niedrig, G. Beamson, D.T. Clark, W.R. Salaneck, H. Sotobayashi, A. Bradshaw, Langmuir 10 (1994) 4399-4402

https://doi.org/10.1021/la00024a001

 

16 "Oriented Growth of Quinquethiophene on SiO2 - An Atomic Force Microscopy Study", O. Böhme, Ch. Ziegler, W. Göpel, Adv. Mat. 6 (1994) 587-590

https://doi.org/10.1002/adma.19940060714

 

15 "X-ray Photoelectron Spectroscopy of KrF Laser-irradiated Polycarbonate Films", P. Lemoine, K. Cazzini, I.T. McGovern, W.J. Blau, P. Bätz, C. Ziegler, W. Göpel, Chem. Phys. Lett. 220 (1994) 177-180

https://doi.org/10.1016/0009-2614(94)00175-8

 

14 "Doping and Stability of Ultrapure -Oligothiophene Thin Films", D. Oeter, Ch. Ziegler, W. Göpel, Conf. Proc. E-MRS Spring Meeting 1993, und Synth. Met. 61 (1993) 147-150

https://doi.org/10.1016/0379-6779(93)91213-L

 

13 "Conductivity Measurements of (GaPcF)n and (AlPcF)n Thin Films: Influence of Gas Exposure and Structural Disorder", D. Martin, R. Elliot-Martin, Ch. Ziegler, M. Willis, W. Göpel, Conf. Proc. E-MRS Spring Meeting 1993, Straßburg (F), und Synth. Met. 61 (1993) 121-125

https://doi.org/10.1016/0379-6779(93)91208-J

 

12 "Doping Effects in Thin Films of Radicalar Phthalocyanines: XPS, UPS, HREELS, and Conductivity Studies", J. Bufler, Ch. Ziegler, W. Göpel, Conf. Proc. E-MRS Spring Meeting 1993, Straßburg (F), und Synth. Met. 61 (1993) 127-131

https://doi.org/10.1016/0379-6779(93)91209-K

 

11 "Undoped and Doped Oligothiophenes: an In-situ XPS-, UPS-, and HREELS-Study", D. Oeter, Ch. Ziegler, W. Göpel, H. Naarmann, Conf. Proc. "In Situ Investigations of Physico-chemical Processes at Interfaces", Bunsen Discussion Meeting, Lahnstein (D) 1992, und Ber. Bunsenges. Phys. Chem. 97 (1993) 448-451

https://doi.org/10.1002/bbpc.19930970336

 

10 "Scanning Tunneling Microscopy Study of Oriented Poly(tetrafluoroethylene) Substrates", P. Bodö, Ch. Ziegler, J. Rasmusson, W.R. Salaneck, D. T. Clark, Conf. Proc. ICSM '92, Göteborg (S), und Synth. Metals 55 (1993) 329-334

https://doi.org/10.1016/0379-6779(93)90953-T

 

9 "Electronic Structure and Electrical Properties of Monomeric and Polymeric Phthalocyanines", Ch. Ziegler, J. Bufler, D. Martin, W. Göpel, Conf. Proc. ICSM '92, Göteborg (S), und Synth. Metals 55 (1993) 91-96

https://doi.org/10.1016/0379-6779(93)90915-J
 

8 "Chemically Modified Semiconductor Surfaces: 2,6-Dimethylisocyanobenzene on Si(100)(2x1)", Th. Kugler, Ch. Ziegler, W. Göpel, Conf. Proc. EUCMOS, Wien (A) 1992, und J. Mol. Structure 293 (1993) 257-260

https://doi.org/10.1016/0022-2860(93)80062-Z
 

7 "Passivation Layers on YBa2Cu3O7-x Thin Films", Ch. Ziegler, G. Frank, W. Göpel, Conf. Proc. ICAM 1991, Straßburg (F), "High Tc Superconductor Thin Films", L. Correra (Ed.) North Holland, Amsterdam 1992, p.707-713

 

6 "Interface Properties of Thin YBa2Cu3O7-x-Films", Ch. Ziegler, G. Frank, W. Göpel, Conf. Proc. Bunsentagung, Bochum (D) 1991, und Ber.Bunsenges.Phys. Chem. 95 (1991) 1404-1409

https://doi.org/10.1002/bbpc.19910951116

 

5 "Surface Composition of Clean, Epitaxial Thin Films of YBa2Cu3O7-x from Quantitative XPS Analysis", G. Frank, Ch. Ziegler, W. Göpel, Phys.Rev.B 43 (1991) 2828-2834

 

4 "Interface Analysis of the System Si/YBa2Cu3O7", Ch. Ziegler, F. Baudenbacher, H. Karl, H. Kinder, W. Göpel, Conf. Proc. Angewandte Oberflächenanalytik, Kaiserslautern (D) 1990, und Fres.Z.Analyt.Chem. 341 (1991) 308-313

https://doi.org/10.1007/BF00321569

 

3 "Photoemission Study of the Ba Core Levels in YBa2Cu3O7-x", Ch. Ziegler, G. Frank, W. Göpel, Z.Phys.B 81 (1990) 349-353

https://doi.org/10.1007/BF01390814


2 "Non-Superconducting and Rendered Superconducting YBa2Cu3O7-x: An In-Situ Pho­toemission Study", B. Dauth, P. Sen, B. Rupp, W. Gudat, Ch. Ziegler, W. Göpel, Z.Phys.B 79 (1990) 169-172

https://doi.org/10.1007/BF01406579


1 "Ba2Cu2O5 as a Stable Prototype Material for Investigating the "Cu(III)-Problem" in High-Tc-Superconductors", U. Straub, D. Krug, Ch. Ziegler, D. Schmeißer, W. Göpel, Mat.Res.Bull. 24 (1989) 681-686

https://doi.org/10.1016/0025-5408(89)90083-4