Applied Colloids Surfactants
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L.U.M. GmbH Publications


LUMiFuge 116 - Application - Evaluation of long-term stability of cosmetic creams

Characterization and optimization of emulsions by multisample analytical centrifugation

Selection of lime dispersing agents by multisample analytical centrifugation

Einfluß der Zusammensetzung nichtionischer Tenside auf den HLB-Wert für optimale Emulsionsstabiliät

Lumifuge-Application Testing Stabilization of carbon black dispersions

Rapid stability assessment for liquid and paste-like foods with multisample analytical centrifugation


online article at the SCI web site

Rapid characterization of emulsions for emulsifier selection, quality control and evaluation of stability using multisample analytical centrifugation


online at Google Docs

Application of multisample analytical centrifugation for fast evaluation of long term stability and freeze/thaw stability of emulsions

Evaluation of long term stability of model emulsions

Charakterisierung der Dispersionseigenschaften für die Partikelgrößenanalyse

Fast evaluation of dispersion properties for particle size analysis


On-line article at SpecialChem4Coatings.com

Paint Products: Accelerated stability and quality testing


online articles at InfoClearinghouse

Pre-Selection of Flocculants by the Separation Analyser Lumifuge 114

Investigations on Sludge Dewatering with the Separation Analyser LUMiFuge 114

Surfactant Combinations for Enhanced Removal of Contaminants

Two-Step Bioreactor Process for Removal of Contaminants with Low Bioavailability


On-line Publications at

the Preprint Server of ChemWeb.com
shifted to the Preprint Archive - ScienceDirect.com

Investigations on sludge dewatering with the separation analyzer LUMiFuge 114
T. Sobisch, D. Lerche, 2000

Chemistry Preprint Archive, Volume 2002, Issue 10, October 2002, Pages 1-11

Surfactant combinations for enhanced removal of contaminants
T. Sobisch, 2000
Chemistry Preprint Archive, Volume 2002, Issue 8, August 2002, Pages 9-10

Pre-selection of Flocculants by the Separation Analyser Lumifuge 114
T. Sobisch, 2002
Chemistry Preprint Archive, Volume 2002, Issue 4, April 2002, Pages 265-274
Stability analyser LUMiFuge 116 for rapid evaluation of emulsion stability and demulsifier selection
D. Lerche, T. Sobisch, S. Küchler, 2002
Chemistry Preprint Archive, Volume 2002, Issue 6, June 2002, Pages 195-201


Two-step bioreactor process for removal of contaminants with low bioavailability
T. Sobisch, H. Niebelschütz, 2002
Chemistry Preprint Archive, Volume 2002, Issue 6, June 2002, Pages 1-31


Characterization of nanostructuring effects at solid/liquid interfaces by analytical centrifugation
T. Sobisch, D. Lerche, 2002
Chemistry Preprint Archive, Volume 2002, Issue 9, September 2002, Pages 170-184

Interaction between tailored particle interfaces characterized by analytical centrifugation
T. Sobisch, D. Lerche, 2003
incl. short note
New direct method for evaluation of colloidal crystallization of nanosized particles
T. Sobisch 2003
Chemistry Preprint Archive, Volume 2003, Issue 7, July 2003, Pages 198-218

Rapid emulsifier selection and evaluation of emulsion stability by analytical centrifugation
T. Sobisch, D. Lerche, 2004
Chemistry Preprint Archive, Volume 2004, Issue 5, May 2004, Pages 7-18



interfacial and colloidal phenomena
Untersuchungen zur Adsorption kationischer Tenside an mikrokristalliner Zellulose
T. Sobisch, Tenside Detergents 29 (1992) 199 - 202

On the adsorption of polyoxyethylene p-tert-octylphenyl ether on silica
T. Sobisch, Colloids and Surfaces 66 (1992) 11 - 21

The influence of alcohols of different alkyl chain length on the solubilization of solutions containing polyoxyethylene p-tert-octylphenyl ether
T. Sobisch, R. Wüstneck, Colloids and Surfaces 62 (1992) 187 - 198

Solubilisation von Modellölen in wäßrigen Lösungen von Tensidmischungen
T. Sobisch, Tenside Detergents 31 (1994) 36 - 38

The use of methyl orange for the characterization of micelles in aqueous nonionic surfactant solutions
T. Sobisch, Progress in Colloid & Polymer Science 89 (1992) 44 - 48

The use of uv measurements for the characterization of micelles in aqueous nonionic surfactant solutions
T. Sobisch, Proceedings 6th Conference on Colloid Chemistry, 16 - 19 Sept. 1992,
Balatonszéplak, Ungarn, publ. 1993, pp.327 - 330,

Umfassende analytische Charakterisierung handelsüblicher nichtionischer Tenside durch Kopplung von HPLC und MALDI-TOF-MS
R.-P. Krüger, H. Much, G. Schulz, H. Heß, H. Hübner, T. Sobisch,
DECHEMA-Jahrestagungen ´96, Wiesbaden 21.-23.5.1996, Vol. I, pp. 610 - 611

Automatisches Meßsystem - LUMiFuge - für die Charakterisierung des Separationsverhaltens disperser Systeme
D. Lerche, D. Frömer, O. Kießlich, T. Sobisch, Ch. Lehnberger
DECHEMA-Jahrestagungen ´98, Wiesbaden 26.-28.5.1998, Vol. II, pp. 438 - 440

Effizientes Messsystem für die objektive Charakterisierung und Optimierung von Separationsprozessen
T. Sobisch, Ch. Lehnberger, D. Lerche, Wasser, Luft und Boden (10/1998) 38 - 40

Application of a new separation analyzer for the characterization of dispersions stabilized with clay derivatives
T. Sobisch, D. Lerche,
Colloid and Polymer Science 278 (2000) 369 - 374

Untersuchungen zur Schlammentwässerung mit dem Entmischungsanalysator
LUMiFuge 114
T. Sobisch, D. Lerche,
Schriftenreihe des Instituts für Siedlungswasserwirtschaft der Universität Karlsruhe Vol. 103,
pp. 107 – 125, Karlsruhe 2000, ISBN 3-9807000-6-2

A new method for rapid classification of demulsifiers to separate crude oil-water emulsions
E. Mathies, T. Sobisch, D. Lerche 2000, in Min R. S. (ed.), Oil and Gas Chemistry, Proceedings of the IV International Conference, October 2-6 2000, Tomsk, Russian Academy of Sciences Siberian Branch, Institute of Petroleum Chemistry, Vol. 1, pp. 485 - 491

Pre-selection of flocculants by the separation analyser LUMiFuge 114
T. Sobisch, D. Lerche
Water Science and Technology, 46 No. 4-5 (2002) 441–446

A new method to characterize mechanical behaviour of nano- and microparticles
D. Lerche, T. Sobisch, H. Woehlecke, R. Ehwald 2002, in Cell Physiology and Interactions of Biomaterials and Matrices, COST 840 & X International BRG Workshop on Bioencapsulation 26 – 28 April 2002 Prague, pp. 144 - 147

Stability analyser LUMiFuge 116 for rapid evaluation of emulsion stability
D. Lerche, T. Sobisch, S. Küchler, in Proceedings Third World Congress on Emulsion,
24-27 Sept. 2002 Lyon, France, CD-ROM - Corlet Multimedia 02 31 35 18 60
3-B-260 pp.1 - 7

Characterization of nanostructuring effects at solid/liquid interfaces by analytical centrifugation
T. Sobisch, D. Lerche, Tenside Surfactants Detergents, 39 (2002) 232 - 236

Optimierung der Flockungsmittelauswahl für die Schlammentwässerung mit einem Entmischungsanalysator
T. Sobisch, D. Lerche, R. Simon, Wasser, Luft und Boden (5/2003) 34 - 37

Use of analytical centrifugation for evaluation of solid-liquid separation in decanter centrifuges - Application for selection of flocculants for sludge dewatering
T. Sobisch, D. Lerche, Proceedings Filtech Europa 2003 International Conference and Exhibition Filtration and Separation Technology, 21 – 23 October 2003 Düsseldorf, Germany
Filtech Europa Vol I – L – Sessions, pp. I-91 – 98

Sedimentation and consolidation behaviour of concentrated dispersions
D. Lerche, T. Sobisch, H. Woehlecke, Proceedings Filtech Europa 2003 International Conference and Exhibition Filtration and Separation Technology, 21 – 23 October 2003 Düsseldorf, Germany
Filtech Europa Vol I – L – Sessions, pp. I-99 – 105

Characterization of interparticle forces in dispersions by analytical centrifugation
T. Sobisch, D. Lerche, Paper 25.6, Paper Proceedings CD PARTEC 2004, International Congress for Particle Technology, Nuremberg, Germany 16 - 18. 3. 2004,
Eds. S.E. Pratsinis, H. Schulz, R. Strobel, and C. Schreglmann

Characterization of the sedimentation and consolidation behaviour of concentrated dispersions by analytical centrifugation
D. Lerche, T. Sobisch, Paper Proceedings CD WFC9, 9th International World Filtration Congress, New Orleans, USA April 18-24, 2004,
The American Filtration and Separation Society, 146_9.pdf

Use of analytical centrifugation for evaluation of solid-liquid separation in decanter centrifuges: Application for selection of flocculants for sludge dewatering
T. Sobisch, D. Lerche, Paper Proceedings CD WFC9, 9th International World Filtration Congress, New Orleans, USA April 18-24, 2004,
The American Filtration and Separation Society, 414.4.pdf

Characterization of colloidal dispersions by analytical centrifugation
T. Sobisch, D. Lerche, Produktgestaltung in der Partikeltechnologie Band 2, 2. Symposium Partikeltechnologie 17., 18. Juni 2004, Fraunhofer ICT, Pfinztal,
Ed. Ulrich Teipel, Stuttgart: Fraunhofer-IRB-Verlag 2004, pp. 433 – 448

Rapid emulsifier selection and evaluation of emulsion stability by analytical centrifugation
T. Sobisch, D. Lerche, Proceedings CESIO 2004 – 6th World Surfactants Congress 20 – 23 June 2004 Berlin – CD

Use of analytical centrifugation for evaluation of solid-liquid separation in decanter centrifuges: Application for selection of flocculants for sludge dewatering
T. Sobisch, D. Lerche, Filtration 4 (2004) 270 – 274

Tracing the centrifugal separation of fine-particle slurries – Effect of centrifugal acceleration, particle interaction and concentration
T. Sobisch, D. Lerche, T. Detloff, M. Beiser, A. Erk,
Paper Proceedings CD 2005 American Filtration and Separation Society (AFS) conference, Atlanta, GA, USA April 10-13, 2005,
The American Filtration and Separation Society, p-m32-1.pdf

Rapid selection of dispersants and evaluation of emulsion stability by analytical centrifugation
T. Sobisch, D. Lerche, Proceedings of the 11th CID Meeting (Comitato Italiano dei derivati tensioattivi), Rom, 22.-24.06.2005 – CD

Rapid stability assessment for liquid and paste-like foods with multisample analytical centrifugation
T. Sobisch, D. Lerche, S. Küchler, A. Uhl,
Paper Proceedings Euro Food Chem XIII, Macromolecules and their degradation products in food – physiological, analytical and technological aspects,
Hamburg, Germany, September 19 – 23 2005, Eds. T. Eklund, M. Schwarz, H. Steinhart, H.-P. Their, P. Winterhalter, pp. 672 – 675, Gesellschaft Deutscher Chemiker e.V., 2005
ISBN 3-936028-31-1

Consolidation of concentrated dispersions of nano- and microparticles determined by analytical centrifugation
D. Lerche, T. Sobisch,
Proceedings Particulate Systems Analysis 2005, Stratford-upon-Avon 21 – 23 September
CD-ROM

Particle Size Distribution by Space or Time Dependent Extinction Profiles obtained by Analytical Centrifugation
T. Detloff, D. Lerche, T. Sobisch,
Proceedings Particulate Systems Analysis 2005, Stratford-upon-Avon 21 – 23 September
CD-ROM

Tracing the centrifugal separation of fine-particle slurries – Effect of centrifugal acceleration, particle interaction and concentration
T. Sobisch, D. Lerche, T. Detloff, M. Beiser, A. Erk,
Paper Proceedings Filtech 2005 Wiesbaden 11 – 13 October, International Conference & Exhibition for Filtration and Separation Technology Vol. I, pp. 83 – 90,
Filtech Exhibitions Germany

Optimierung der Prozessbedingungen für die Herstellung stabiler Emulsionen
St. Küchler, C. Schneider, D. Lerche, T. Sobisch,
GIT Laborfachzeitschrift 12/2005 S. 1029 - 1031

Characterization of porous bead celluloses by analytical centrifugation
T. Sobisch, D. Lerche, S. Fischer, C. Fanter,
Progr Colloid Polym Sci 133 (2006) 169 – 172

Determination of stability, consolidation and particle size distribution of liquid or semi-liquid food products by multisample analytical centrifugation
D. Lerche, T. Sobisch, T. Detloff,
ISFRS 2006, Proceedings of the 4th International Symposium on Food Rheology and Structure, ed. P. Fischer, P. Erni, E.J. Windhab, pp. 221-225,
ETH Zürich 2006, ISBN 3-905609-25-8

Shelf life prediction of liquid food products by multisample analytical centrifugation
D. Lerche, T. Sobisch, S. Küchler,
ISFRS 2006, Proceedings of the 4th International Symposium on Food Rheology and Structure, ed. P. Fischer, P. Erni, E.J. Windhab, pp. 601-602,
ETH Zürich 2006, ISBN 3-905609-25-8

Evaluation of long term stability of model emulsions by multisample analytical centrifugation
T. Sobisch, D. Lerche, F. Aguilar, G.G. Badolato, H.P. Schuchmann,
4th World Congress on Emulsions

Characterization of liquid nanoparticle dispersions by multisample analytical centrifugation - Particle interaction, colloidal crystallization
T. Sobisch, D. Lerche, Proceedings ‘The Fifth World Congress on Particle Technology’ April 23 – 27 2006 Orlando, Florida, Paper P 37902, CD publ. New York, NY, AICHE 2006

Use of multisample analytical centrifugation for evaluation of separation of fine particle slurries in the centrifugal field
T. Sobisch, D. Lerche, T. Detloff, Proceedings ‘The Fifth World Congress on Particle Technology’ April 23 – 27 2006 Orlando, Florida, Paper P 37868, CD publ. New York, NY, AICHE 2006

Characterization of interparticle forces in aqueous and nonaqueous dispersions using multisample analytical centrifugation
T. Sobisch, D. Lerche, Proceedings ‘The Fifth World Congress on Particle Technology’ April 23 – 27 2006 Orlando, Florida, Paper P 37907, CD publ. New York, NY, AICHE 2006

Teilchenwechselwirkungen und Konsolidierungsverhalten in Nano- und Mikro-dispersionen
T. Sobisch, D. Lerche, Produktgestaltung in der Partikeltechnologie Band 3, 3. Symposium Partikeltechnologie 21. - 23. Juni 2006, Fraunhofer ICT, Pfinztal,
Ed. Ulrich Teipel, Stuttgart: Fraunhofer-IRB-Verlag 2006, ISBN 3-8167-7115-7 pp. 523 – 535

Process optimisation for making stable emulsions using accelerated dispersion analysis by multisample analytical centrifugation
S. Küchler, C. Schneider, D. Lerche, T. Sobisch,
LabPlus international 20 /4 (2006) 14 - 17

Particle Size Distribution by Space or Time Dependent Extinction Profiles obtained by Analytical Centrifugation
T. Detloff, D. Lerche, T. Sobisch,
Part. Part. Syst. Charact. 23 (2006) 184 – 187

Tracing the centrifugal separation of fine-particle slurries by analytical centrifugation
T. Sobisch, D. Lerche, T. Detloff, M. Beiser, A. Erk,
Filtration 6 /4 (2006) 313 - 321

Real time measurement of the velocity distribution of polydisperse fine particle slurries for technical separation processes
T. Sobisch, D. Lerche, T. Detloff,
ECFS 2006 Proceedings of the 2nd European Conference on Filtration and Separation, 12-13 October 2006 Compiègne, France, Eds. Eugène Vorobiev, Jean-Louis Lanoisellé,
Compiègne: Université de Technologie de Compiègne 2006, ISBN 10: 2-913923-25-9, ISBN 13 : 978-2-913923-25—6 pp. 49 - 54

In-situ investigation of separation instabilities during sedimentation in the centrifugal field
T. Sobisch, D. Lerche, T. Detloff, R. Montalvo, N. Quintas,
ECFS 2006 Proceedings of the 2nd European Conference on Filtration and Separation, 12-13 October 2006 Compiègne, France, Eds. Eugène Vorobiev, Jean-Louis Lanoisellé,
Compiègne: Université de Technologie de Compiègne 2006, ISBN 10: 2-913923-25-9, ISBN 13 : 978-2-913923-25—6 pp. 86 - 91

Characterization of interparticle forces for solid-liquid separation processes using multisample analytical centrifugation
T. Sobisch, D. Lerche,
Paper Proceedings Filtech 2007 Wiesbaden February 27 – March 1, International Conference & Exhibition for Filtration and Separation Technology Vol. I, pp. 142 – 149,
Filtech Exhibitions Germany

Characterization of carbon black dispersions by multisample analytical centrifugation
T. Sobisch, D. Lerche, N. Quintas, T. Detloff,
Paper Proceedings PARTEC 2007 Nuremberg 27 – 29.3.2007, International Congress on Particle Technology, Eds. Wolfgang Peukert, Claudia Schregelmann, P02_01.pdf CD-ROM

Characterization of liquid nanoparticle dispersions by multisample analytical centrifugation
T. Sobisch, D. Lerche,
Paper Proceedings PARTEC 2007 Nuremberg 27 – 29.3.2007, International Congress on Particle Technology, Eds. Wolfgang Peukert, Claudia Schregelmann, S12_5.pdf CD-ROM

Particle interactions in dispersions of micro and nanoparticles / Sedimentation of colloidal particles
T. Sobisch, D. Lerche, F. Babick, G. Salinas Salas,
Paper Proceedings PARTEC 2007 Nuremberg 27 – 29.3.2007, International Congress on Particle Technology, Eds. Wolfgang Peukert, Claudia Schregelmann, S18_1.pdf CD-ROM

Consolidation of concentrated dispersions of nano- and microparticles determined by analytical centrifugation
D. Lerche, T. Sobisch,
Powder Technology 174 (2007) 46 – 49

Particle Size Distribution by Space or Time Dependent Extinction Profiles obtained by Analytical Centrifugation (concentrated systems)
T. Detloff, T. Sobisch, D. Lerche,
Powder Technology 174 (2007) 50 – 55

Charakterisierung interpartikulärer Kräfte für Fest/Flüssig-Trennverfahren mittels Analytischer Zentrifugation
T. Sobisch, D. Lerche,
Chemie Ingenieur Technik 80 (2008) 393 - 397






soil remediation

The potential use of surfactants in the field of physicochemical soil clean up
T. Sobisch, G. Reinisch, H. Hübner, A. Karg, H. Niebelschütz,
in "Contaminated Soil '93", Proceedings of the Fourth International KfK/TNO
Conference on Contaminated Soil, 3-7 May 1993, Berlin, Germany,
ed. F. Arendt, G.J. Annokee, R. Bosman, W.J. van den Brink, Volume II, p.1453,
Kluwer Academic Publishers, Dordrecht/Boston/London 1993

Emulsions formed during surfactant enhanced soil cleanup
T. Sobisch, J. Krägel, G. Reinisch:
Proceedings of the First World Congress on Emulsions - Paris 19 - 22 oct. 1993,
Vol.2, 3-30-307

Physicochemical aspects of in situ surfactant washing of oil contaminated soils
T. Sobisch, L. Kühnemund, J. Krägel, H. Hübner, G. Reinisch,
Prog. Coll. & Polym. Sci. 95 (1994) 125 - 129

Effektivere Bodenreinigung mit maßgeschneiderten Tensidkombinationen
T. Sobisch, L. Kühnemund, H. Hübner, G. Reinisch, K.-H. Heeg,
TerraTech (6/1994) 55 - 56

Entwicklung neuer Tensidformulierungen für den Einsatz in der Bodenreinigung
T. Sobisch, L. Kühnemund, H. Hübner, G. Reinisch,
DECHEMA-Jahrestagungen ´95, 30. Mai - 1. Juni 1995 Wiesbaden,
Vol.II Umwelttechnik, pp.99 - 100, DECHEMA e.V. 1995

Investigations on surfactant enhanced decontamination of tar polluted soils
T. Sobisch, L. Kühnemund, H. Hübner, G. Reinisch, T. Olesch,
in "Contaminated Soil '95", Proceedings of the Fifth International FZK/TNO
Conference on Contaminated Soil, 30 October - 3 November 1995, Maastricht,
ed. W.J. van den Brink, R. Bosman, F. Arendt, Volume II, pp.1357 - 1358,
Kluwer Academic Publishers, 1995

Stimulierung des mikrobiellen Schadstoffabbaus durch spezielle Tensidformulierungen
K. Ahrens, E. Winsel, T. Sobisch,
Kontaktforum Biotechnologie - DECHEMA Jahrestagungen ´95, Wiesbaden 1.6.1995

Auswahl von Additiven zur Erhöhung der Reinigungswirkung von Verfahren zur Behandlung Teer- und PAK-verunreinigter Böden
T. Sobisch, H. Hübner, L. Kühnemund, T. Olesch,
NORDAC-Schriftenreihe Band 5, Economic Verlag GmbH, Bonn 1996, pp.88 - 97

Auswahl von Tensidkombinationen für die hydraulische In-situ-Sanierung von Schwelereiböden
T. Sobisch, T. Olesch, H. Hübner, L. Kühnemund,
Tagungsband 11. DECHEMA-Fachgespräch "In-situ-Sanierung von Böden"
17./18. 4. 1996, Frankfurt a. Main, pp.349 - 354

Mittel für die Sanierung organisch kontaminierter Böden
DE 43 10 776 A1, A62D3/00

Development of a bioreactor process for treatment of PAH contaminated soils
T. Sobisch, H. Niebelschütz, in "Contaminated Soil '98", Proceedings of the Sixth International FZK/TNO Conference on Contaminated Soil, May 17 - 21 1998, Edinburgh,
pp. 1189 - 1190, Thomas Telford Publishing, Ltd., London (1998)

Entwicklung eines Bioreaktorverfahrens für die Behandlung PAK-kontaminierter Böden
T. Sobisch, H. Niebelschütz, in
DECHEMA-Jahrestagungen ´98, Wiesbaden 26.-28.5.1998, Vol. II, pp. 103 - 105

Neuartiges Bioreaktorverfahren für die Reinigung organisch kontaminierter Materialien
T. Sobisch, H. Niebelschütz, TerraTech (6/1998) 58 - 60

Verfahren für die Sanierung organisch kontaminierter Materialien
DE 198 06 593 A1, A62D3/00

Entwicklung neuer Tensidformulierungen für den Einsatz in der Bodenreinigung
T. Sobisch, in Deutsche Bundesstiftung Umwelt, S.Heiden (ed.) „Innovative Techniken der Bodensanierung - ein Beitrag zur Nachhaltigkeit“, Chapter 14, pp. 213 -233
Spektrum Akademischer Verlag GmbH Heidelberg Berlin 1999, ISBN 3-8274-0892-X

Effect of additives on biodegradation of PAH in soils
T. Sobisch, H. Heß, U. Schmidt, H. Niebelschütz,
Colloids & Surfaces A, 162 (2000) 1 - 14

Zweistufiges Bioreaktorverfahren für die Entfernung schlecht bioverfügbarer Schadstoffe
T. Sobisch, H. Niebelschütz, in
DECHEMA-Jahrestagungen ´99, Wiesbaden 27.-29.4.1999, suppl. A9.42

Zweistufiges Bioreaktorverfahren für die Entfernung schlecht bioverfügbarer Schadstoffe
T. Sobisch, Niebelschütz, in Deutsche Bundesstiftung Umwelt, „Biotechnologie im Umweltschutz - Bioremediation: Entwicklungsstand - Anwendungen - Perspektiven“
Erich Schmidt Verlag, Berlin 1999, ISBN 3 503 04848 0, p. 296

Two-step bioreactor process for removal of contaminants with low bioavailability
T. Sobisch, Niebelschütz, in DECHEMA e.V.
International Meeting on Chemical Engineering, Environmental Protection and Biotechnology
ACHEMA 2000 22. – 27. 5. 2000 Frankfurt am Main,
Abstracts of the lecture groups Environmental Technology and Fundamentals of Laser-aided In-situ Soil Analysis, pp. 181 – 183

Surfactant combinations for enhanced removal of contaminants
T. Sobisch in "Contaminated Soil '2000", Proceedings of the FZK/TNO International Conference on Contaminated Land, 18 - 22 September 2000, Leipzig,
Thomas Telford Publishing, Ltd., London pp. 1180 - 1181
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