Plenary and Invited Lectures

2008

“Biocatalytic and chemoenzymatic cascade processes for green organic synthesis” Plenary Lecture, The Second International Symposium on Chemistry of Concerto Catalysis, Tokyo, Japan, 18-19 April 2008

“Cross-linked enzyme aggregates (CLEAs): Recyclable catalysts for industrial biotransformations” Plenary Lecture, Industrial Biotransformations. Designer enzymes for a new era San Francisco, USA, 24-25 April 2008

“Catalysis, green chemistry & sustainability: challenges & opportunities” Plenary Lecture, North East Symposium on Catalysis Enabled Synthetic Methodology for Pharmaceutical and Fine Chemicals, Newcastle, UK, 1 July 2008

“Biocatalysis for the synthesis of pure enantiomers” Plenary Lecture, 20th Int. Symposium on Chirality, ISCD-20, Geneva, Zwitserland, 6-9 July 2008,

“Activation of dioxygen and homogeneous catalytic oxidation: Retrospect and prospect” Plenary Lecture, ADHOC 2008, Activation of dioxygen and homogeneous catalytic oxidation, Venice, Italy, 20-25 July 2008

“Cross-linked enzyme aggregates (CLEAs): stable and recyclable catalysts for biotransformations” Plenary Lecture, International Enzyme Engineering Symposium, 1-5 October 2008, Kusadasi, Turkey

“Biocatalysis and organic synthesis: when green chemistry met white biotechnology” Plenary Lecture, Selchem conference, Sigtuna, Sweden, 20-21 November 2008

“Green chemistry for the sustainable utilisation of biomass” Invited Lecture, Fourth International Conference on Renewable Resources and Biorefineries, Rotterdam, 1-4 June 2008

“New vistas in biocatalysis and green chemistry” Invited Lecture, Gordon Research Conference on Green Chemistry, Lewiston, Maine, USA, 3-8 August 2008

 

2007

“Catalysis, green chemistry and sustainability : quo vadis? Plenary Lecture, 1st Asian/Oceanian Conference on Green and Sustainable Chemistry, Tokyo, Japan, March 6-9, 2007.

“Designing biotransformations in ionic liquids” Plenary Lecture, International Conference on Ionic Liquids, COIL-2, Yokohama, Japan, August 5-10, 2007.

“Biocatalysis for the synthesis of pure enantiomers”, Plenary Lecture, Advances in Organic Chemistry Conference, Smolenice, Slovak Republic, September 16-20, 2007.

“Catalysis, green chemistry and sustainability : challenges and opportunities” Plenary Lecture, COST Action D40 kick-Off Meeting and Workshop, Dublin, Ireland, May 20-22, 2007.

“Green catalytic oxidations with oxidases and peroxidases” Invited Lecture, 234th ACS National Meeting, Boston, USA, Catalysis and Surface Science Section, August 19-23, 2007.

“Cross-linked enzyme aggregates (CLEAs) : effective catalysts for biotransformations”, Invited Lecture, 13th European Congress on Biotechnology, Barcelona, 16-19 September, 2007.

“Cross-linkedenzyme aggregates (CLEAs) : stable and recyclable catalysts for industrial applications” Invited Lecture, CoEBio3 1st Annual Conference, Manchester, UK, September 26-27, 2007

“Biocatalytic processes : advantages and limitations”, Invited Lecture, Pharmaceutical Process Chemistry Conference, London, November 28-30,2007.

 

2006

“Multistep synthesis via biocatalytic and chemoenzymatic cascade processes: emulating the cell factory” , Plenary lecture, MECP06, Graz, Austria, 18-21 April, 2006

“Combining Bio- and Chemocatalysis in Catalytic Cascade Processes” , Plenary lecture, Gratama workshop, Osaka , Japan, 19-21 October, 2006

“Green chemistry and catalysis: the key to sustainability’ , Invited lecture, Int. Symposium for the 30th Anniversary of KRICT, Seoul, Korea, 25-31 August, 2006

“Multistep catalytic cascade processes for sustainable organic synthesis” , Invited lecture, 1st European Chemistry Congress, Budapest, Hungary, 27-31 August, 2006

“Catalysis and green chemistry: the key to sustainability” Keynote lecture, IUPAC International Conference on Green Chemistry, Dresden, 10-15 September 2006

“Green, chemo- and biocatalytic oxidation of alcohols” , Invited lecture, The Netherlands-Japan Catalysis Seminar “Catalysis Technology for Green and Sustainable Chemistry”, Sophia University, Japan, 17 October, 2006

“Biocatalytic oxygen insertion using haloperoxidases” , Invited lecture, Green Chemistry Symposium, Lund, Sweden, 8-10 November, 2006

“Combining bio- and chemocatalysis in catalytic cascade processes” Invited lecture, 4th Asia Pacific Congress on Catalysis, Singapore, 6-8 December 2006

 

2005

“Catalytic oxidations mediated by metal ions and nitroxyl radicals,invited lecture” , Plenary lecture, ADHOC 2005, Cologne, 25-29 July, 2005

“Green chemistry and catalysis for sustainable organic synthesis” Plenary lecture, 7th Int. Symposium on Green Chemistry (7th ISGCC’2005), Zhuhai, China, 23-26 May, 2005

“Combining organometallic catalysis and biocatalysis in catalytic cascade processes” , Plenary(EuCheMS) lecture, XVIth FECHEM Conference on Organometallic Chemistry, Budapest, Hungary, 3-8 September, 2005

“Green chemistry and catalysis for the sustainable production of specialty chemicals”, Invited lecture, The Second Mitsui Chemicals International Symposium on Catalysis Science (MICS2005), Kisarazu, Chiba Prefecture, Japan, 22-23 March, 2005

“Cross-linked enzyme aggregates (CLEAs): novel and effective immobilization of enzymes” , Invited lecture, Conference on Knowledge-based Materials and Technologies for Sustainable Chemistry (MTSC), Tallinn, Estonia, 1-5 June, 2005

“Green chemistry and catalysis for the production of flavours & fragrances” Invited lecture, Perfume & Flavour Conference, Nice, 17 June, 2005

“The role of catalysis in fine chemicals & specialty synthesis” , Invited lecture, 8th Italian Seminar on Catalysis, Pallanza, Italy, 19-24 June, 2005

“Green chemistry and catalysis in organic synthesis” , Invited lecture, 2nd International Conference on Green and Sustainable Chemistry, Washington, USA, 20-24 June, 2005

“Chemistry at the edge: chemoenzymatic cascades and biphasic catalysis” Invited lecture, 12th Symposium on Relations between Homogeneous and Heterogeneous Catalysis - ISHHC12, Florence , July 18-22, 2005

“Recent advances in green catalytic oxidations of alcohols” Invited lecture, International Symposium Recent Advances in Catalysis, RAC-2005, Rennes, France, 5-9 September, 2005

“Biocatalytic methodologies for the synthesis of pure enantiomer” ,s Invited lecture, Industrial Biocatalysis in Pharmacy and Fine Chemistry, Nimes, 9 September, 2005

“Catalysis in nonconventional media for sustainable organic synthesis NATO ASI” , Invited lecture, New methodologies and techniques in organic chemistry: sustainable development in a secure environment (NeMeTOC), Certosa di Pontignano (Siena), Italy, 14-23 October, 2005

“Biocatalytic, chemocatalytic and chemoenzymatic methods for the synthesis of pure enantiomers” Invited lecture, Vth VUFB conference on Modern methods in synthesis and analysis of active pharmaceutical substances, Prague, Czech Republic, 23-24 November 2005

“Green, chemo- and biocatalytic oxidations of alcohols”, Keynote lecture, Catalysis and Biocatalysis in Green Chemistry, Cambridge, UK, 11-13 December, 2005

 

2004

“Biocatalytic Transformations for the Synthesis of Pure Enantiomers” Invited lecture, Symposium on Separation, Purification and Analysis in Drug Discovery,Goteborg, Sweden, 20-23 June 2004

“New Vistas in Catalytic Oxidations: Nitroxyl radicals as oxidation catalysts” , Invited lecture, COFEM 2004, Venice, 23-26 June 2004 “Cross-Linked Enzyme Aggregrates(CLEAs): a Novel and Effective Immobilization of Enzymes” Invited lecture, ProtStab 2004, Bratislava, Slowakia

“Catalytic Oxidations Mediated by Metal Ions and N-Oxy Radicals” , Keynote lecture, 14th International Symposium on Homogeneous Catalysis, Munich, Germany, 5-9 July, 2004

“Green Chemistry and Catalysis : Chemo or Bio?” , Invited lecture, Gordon Conference on Biocatalysis, Meriden, USA, 11-16 July, 2004

“Sustainable catalytic conversions in water and supercritical carbon dioxide” , Invited lecture, International Symposium on Innovative Reaction Fields: Towards Sustainable Chemical Processes, Tokyo, Japan, 13-14 September, 2004

“Green solvents for organic synthesis: state of the art” , Invited lecture, Green Solvents for Synthesis, Bruchsal, Germany, 3-6 October 2004

“Green chemistry and catalysis for sustainable organic synthesis” Invited lecture, Trends in Organic Chemistry, Lund, Sweden, 3 December, 2004

 

2003

“Green chemistry and catalysis for sustainable organic synthesis” , Plenary lecture, 19th RASI Organic Conference, Lorne, Australia, 6-11 July, 2003

“Novel enzymatic methods for the synthesis of pure enantiomers”, Plenary lecture, 1st Annual Bio/Chemtek Science and Technology Conference, CSIR, South Africa, 15 August, 2003

“Green chemistry and catalysis for sustainable organic synthesis” Keynote lecture, The first international conference on green & sustainable chemistry, GSC Tokyo 2003, Tokyo, Japan, 13-15 March, 2003

“Novel enzymatic methods for the synthesis of chiral molecules” , Invited lecture, Chiral Europe 2003, London, U.K., 12-14 May, 2003

“Biocatalysis in ionic liquids” , Invited lecture, Workshop Pro-Bio Faraday Partnership on “Novel solvent systems for biocatalytic manufacturing processes”, Manchester, U.K., 3 June, 2003

“Cross-Linked Enzyme Aggregates (CLEAs): a novel and effective immobilization of enzymes” , Invited lecture, Workshop Pro-Bio Faraday, Manchester, U.K., 5 November, 2003

“Biocatalysis in ionic liquids: state of the art and future prospects” Invited lecture, Novartis Foundation/Royal Society discussion meeting, London, UK, 5 December, 2003

 

2002

“Catalytic aerobic oxidations of alcohols: scope and mechanism” , Plenary Lecture, ADHOC 2002 (Activation of Dioxygen and Homogeneous Catalytic Oxidation), Atlanta, USA, 2-7 June, 2002

“Green Chemistry,Catalysis & Organic Synthesis: New Frontiers in Process Chemistry” , Plenary Lecture, The K. Venkataraman Distinguished Speaker Award Lecture, Chemcon, Hyderabad, India, 19 December, 2002

“Green chemistry and catalysis in organic synthesis” Invited lecture,ACS Prospectives Conference Series, Barcelona, 24-27 February, 2002

“A new coproduct-free route to phenol” Invited lecture, 19th ORCS Conference, San Antonio, USA, 14-18 April, 2002

“Kinetic resolutions with amino acylase and penicillin acylase” Invited lecture, Biocat 2002, Fist International Congress on Biocatalysis, Hamburg, Germany, 28-31 July, 2002

“An overview of biocatalysis in ionic liquids” , Invited lecture, 224th American Chemical Society National Meeting, Boston, USA, 18-22 August, 2002

“Green catalytic oxidations with oxygen & hydrogen peroxide” , Invited lecture, GRC Green Chemistry, Oxford, UK, 8-13 September 2002

“Green chemistry, catalysis & fine chemicals” , Invited Lecture , EFCATS, Hungary, 25-28 September, 2002

“Catalytic oxidations of alcohols and ethers” , Invited lecture, Symposium Oxidation and Reduction, London, 28-29 October 2002

“Green Chemistry, Catalysis and Organic Synthesis: Organic Chemistry at the Interface” , Invited lecture, Third Italian-French Meeting on Organic Chemistry, Pisa, 20-22 November, 2002

“Green chemistry: the future of the chemical industry” , Invited lecture, FITEC2002, Barcelona, 26-28 November, 2002

 

2001

“Catalysis and Atom Efficiency in Fine Chemicals Production”, Plenary lecture, International Symposium on Catalysts and Fine Chemicals , Tokyo, 12-14 March, 2001

“Catalytic oxidations in solid-liquid and liquid-liquid biphasic media” Plenary lecture, 10th International Symposium on Relations between Homogeneous and Heterogeneous Catalysis (SHHC10), Lyon, 2-6 July, 2001

“New developments in catalytic oxidation of alcohols” , Plenary lecture, 7th Symposium on Homogeneous Catalysis of the Chinese Chemical Society, Lanzhou, China, 15-17 August 2001

“Enzymatic conversions under non-natural conditions” , Plenary lecture , BioTrans 2001, Darmstadt, Germany, 2 September, 2001

“Carbohydrates from glycerol: an enzymatic four-step-one-pot synthesis” , Invited lecture, World Congress on Enzyme Technologies, San Diego, U.S.A., 26-28 February, 2001

“Green chemistry, catalysis & waste minimization”, Invited lecture, IUPAC Chemrawn XIV: Green Chemistry: toward environmentally benign processes and products, 9-13 June 2001, Boulder, U.S.A.

“Green, catalytic oxidations of alcohols: mechanisms and scope” Invited lecture, ESOC-12, Groningen, 13-18 July, 2001

“New frontiers in process chemistry: an overview” , Invited lecture, RSC Annual Conference 2001, Process Chemistry: New Frontiers, ICC, Birmingham, U.K., 30 July-2 August, 2001

“Green chemistry and catalysis” Keynote lecture, Heidelberg Forum on Molecular Catalysis 2001, Heidelberg, Germany, 7 December, 2001

 

2000

“ Enzymatic conversions under non-natural conditions”, Plenary lecture, BioY2K, Grahamstown, South Africa, January, 2000

“Green chemistry, catalysis and waste minimization” Plenary lecture, International Symposium on Advanced Waste and Emission Management, Nagoya, Japan, December 2000

“Catalytic oxidations and carbonylations in water” , Plenary lecture,12th International Symposium on Homogeneous Catalysis (ISHC 12), Stockholm, Sweden, 27 August -1 September, 2000

“New catalytic methods for the selective oxidation of alcohols and olefins” Invited lecture, REDOX 2000, London, U.K., 12 April 2000

“Polymer immobilized TEMPO (PIPO): an efficient catalyst for the chlorinated hydrocarbon solvent- and bromide-free oxidation of alcohols with hypochlorite”, Invited lecture, 4th International Symposium on Supported Reagents and Catalysts in Chemistry, University of St. Andrews, Scotland, U.K., 2-6 July, 2000

“Novel enzymatic conversions under non-natural conditions” , Invited lecture, ESBES-3, Copenhagen, Denmark, 10-13 September, 2000

 

1999

“New perspectives in catalytic oxidation” , Invited lecture, 1st Int. conference on Oxidation in Organic Chemistry - Potential Industrial Applications, Southampton, UK, 3-5 February, 1999

“Atom efficiency and catalysis for environmentally friendly syntheses” Invited lecture , Symposium of the Network Towards Environmentally Benign Chemical Processes Using Sonochemistry, COST Action D10, Chambery, France, 28-29 May, 1999

“E factors, atom efficiency and catalysis in organic synthesis” Invited lecture , Environmental Aspects of Inorganic and Organometallic Chemistry Symposium, ACS National Meeting New Orleans, USA, 22-24 August 1999

“Environmentally friendly selective oxidations” , Invited Lecture at the presentation of the Otto Roelen Medal, Dechema, Frankfurt, 11 November 1999

“Atom efficiencies, E factors and catalytic processes” Invited lecture , Symposium on Clean Processes and the Environment: the Catalytic Solution, Lyon, 5-8 December 1999

 

1998

“Organic reaction and catalysis: a marriage of convenience” , Plenary lecture ( Paul Rylander Award Lecture) ORCS meeting, New Orleans, U.S.A., 1 April, 1998

Invited Lecture, Gordon Research Conference, 16-21 August, 1998

“Atom efficiency and catalysis in organic synthesis” Invited lecture, IASOC conference, Ischia, Italy, 27 September-2 October, 1998

“Redox molecular sieves: heterogeneous catalysts for liquid phase oxidations” , Invited lecture, XXXth Czech and Slovak Symposium on Catalysis, Prague, 2-4 November, 1998

“Atom efficiency, E factors and catalysis” , Invited Lecture, French Chemical Society Congress on La Chimie Verte, 8-10 December, 1998

“Heterogeneous catalysts for liquid phase oxidations” , Invited Lecture, 15th Canadian Symposium on Catalysis, Québec, Canada, 17-20 May, 1998

“Organometallic catalysis in water” Invited Lecture, Chemical Society of Japan, 27 March, 1998

“Palladium-catalyzed carbonylations in aqueous/biphasic media” Invited Lecture, 33rd Int. Conference on Coordination Chemistry, Florence,30 August -4 September, 1998

 

1997

“Carbonylation and hydrocarboxylation reactions catalyzed by palladium trisulfonated triphenylphosphine complexes” , Invited lecture,Phase Separable Homogeneous Catalysis, ACS Meeting, Las Vegas, U.S.A., 7-11 September 1997

“Catalysis and fine chemicals manufacture” , Invited lecture, Symposium SCI Flavours and Fragrances, Warwick, U.K., 30 April-2 May, 1997

“Activation of alkanes by metal-containing molecular sieves and biocatalysts” Invited lecture, NATO advanced study institute, Advances and Challenges in the Catalytic Activation and Functionalisation of Light Alkanes, Alcabideche, Portugal, 25 May -7 June 1997

“Heterogeneous catalysts for liquid phase oxidations” , Invited lecture, Third Int. Symp. on Supported Reagents and Catalysis in Chemistry, Limerick, Ireland, 8-11 July, 1997

“Catalytic methods for environmentally benign organic synthesis”, Invited lecture, 1997 Gordon Research Conference on Environmentally Benign Organic Synthesis, Queens College, Oxford, U.K., 17-22 August, 1997

“Biocatalytic, biomimetic and suprabiotic oxidations” , Invited lecture, Europacat 3, Krakow, Poland, 31 August-6 September, 1997

“Redox molecular sieves as heterogeneous catalysts for liquid phase oxidations”, Invited lecture, 3rd World congress on oxidation catalysis, San Diego, U.S.A., 21-26 september 1997

“Trends in chirotechnology: an overview” , Invited lecture , Chiral Europe , London, 16-17 October, 1997

 

1996

“The role of catalysis in waste minimization” Invited lecture, Clean Tech '96, Brunel University, London, U.K., 19-21 June, 1996

“Novel enzyme-catalyzed conversions under non-natural conditions” , Invited lecture, Gordon Conference on Biocatalysis, Meriden, U.S.A., 7-12July, 1996

“Biocatalytic vs chemical synthesis of enantiomerically pure compounds” , Invited lecture, Conf. on Biotechnology for the Industrial Production of Fine Chemicals, Zermatt, Switzerland, 29 September - 2 October, 1996 “Zeolite-catalyzed rearrangements in organic synthesis” , Invited lecture, 4th International Symposium on Heterogeneous Catalysis and Fine Chemicals, Basel, Switzerland, 8-12 September 1996

 

1995

“Novel carbonylation reactions catalysed by palladium trisulfonated triphenylphosphine complexes in aqueous media” , Invited lecture, Europacat II, Maastricht, 3-8 September 1995

“Biocatalytic vs chemical methods for the synthesis of pure enantiomers” Invited lecture, 7th Congress on Biotechnology, Nice, 19-23 February, 1995

“Chirotechnology: designing economical chiral syntheses” , Invited lecture, 2nd Int. Conf. on Technologies for the Production of Enantiomerically Pure Chemical, Naples, Florida, U.S.A., 14-17 March, 1995

“Catalytic conversions employing transition metal complexes in aqueous media” , Invited lecture, Japan-Netherlands Workshop: Precision in Metal-mediated and -Catalyzed Synthesis, Amsterdam, 15 May, 1995

“Enantioselective catalysis on heterogeneous catalysts” Invited lecture , Sabatier Conference, Strasbourg, France, 3-7 juli 1995

“Selective catalytic synthesis of fine chemicals: opportunities and future prospects” , Invited lecture, 8th SHHC, Balatonfüred, Hungary, 10-14 September 1995

“Recent advances in catalytic oxidations” , Invited lecture, N.M. Emanuel Symposium, Moscow, Russia, September, 1995

“Redox molecular sieves: solid, recyclable catalysts for liquid phase oxidations” , Invited lecture, 5th Königstein/Kreuth Conference on Organometallic Chemistry, 3-6 October, 1995

“Biocatalytic methods for the industrial synthesis of pure enantiomers” Invited lecture, Int. Symp. Krka's Research Days, Novo Mesto, Slovenia, 7-8 December 1995

 

1993

“History of oxygen activation 1973-1993” , Plenary lecture, 5th International Symposium on the Activation of Dioxygen and Homogeneous Catalytic Oxidation, College Station, Texas, U.S.A., 14 March, 1993

“Redox molecular sieves as heterogeneous catalysts for liquid phase oxidation” Invited lecture, 2nd World Congress on New Developments in Selective Oxidation, Benalmadena, Spain, 20-24 September, 1993

“Fine chemicals by oxidative processes” Invited lecture, SCI Meeting Oxidation in Organic Synthesis, London, 10 February, 1993

“The role of catalysis in waste minimization” , Invited lecture, Spring Symposium of the Philadelphia Catalysis Club, Philadelphia, U.S.A., 23 March, 1993

“Redox molecular sieves: Novel, recyclable catalysts for liquid phase oxidations” Invited lecture, Gordon Research Conf. on Zeolitic and Layered Structures, New Hampshire, U.S.A., 21-25 June, 1993

“Bromide ion-mediated oxidation reactions” , Invited lecture, Orgabroom '93, Jerusalem, Israel, 27 June-1 July, 1993

“Redox molecular sieves as heterogeneous catalysts for liquid phase oxidations” , Invited lecture, ZMPC '93, Symposium on Zeolites and Microporous Crystals, Nagoya, Japan, 22-25 August, 1993

“Industriële organische synthese: Verleden, heden en toekomst” , Invited lecture, KNCV Zomercongres "Chemie: schoon en duurzaam", Rotterdam, 27 August, 1993

 

1992

“Catalysis, the atom utilization concept and waste minimization” Plenary lecture, IUCCP Symposium (A&M), College Station, Texas, U.S.A., 26 March, 1992

Redox molecular sieves as heterogeneous catalysts for liquid phase oxidations Plenary lecture, International Conference on Oxide Surface Chemistry and Reaction Mechanisms, Kiev, Ukraine, 13-20 September, 1992

“Synthesis of protected C3-chirons starting from L-ascorbic and D-isoascorbic acids” , Invited lecture, Chiral 1992, Manchester, U.K., 24-25 March, 1992 “The role of catalysis in waste minimization” , Invited Lecture, European Environmental Conference, The Hague, 8 April 1992

TS-1 Catalyzed selective oxidation of 1,2-diols with H2O2 Invited lecture, DGMK-Conference Selective Oxidations in Petrochemistry, Goslar, Germany, 16-18 September 1992

The role of catalysis in waste minimization Invited Lecture, Precision Process Technology Conference, Delft, 28 October, 1992

“Organic chemistry - Today and tomorrow” Invited Lecture, 10th SCI Process Development Symposium, Cambridge

 

1991

“Chirality and catalysis” Invited lecture , Chemspec, Amsterdam, 13-14 March, 1991

“Industrially relevant catalytic oxidations” , Invited lecture, Florida Catalysis Conference, Palm Coast, FL, U.S.A., 7-14 April, 1991

“Homogeneous and heterogeneous catalytic oxidations with peroxide reagents” Plenary lecture, International Symposium ORPEC '91, Organic Peroxygen Chemistry, Munich, 29-30 April 1991

“New developments in catalytic oxidation” Invited lecture, Seminar on Frontier Technology, Tokyo, Japan, 23-26 July, 1991

“Catalysis, fine chemicals and the environment” , Invited Lecture, 3rd CRC International Symposium on Catalytic Chemistry for Global Environment, Sapporo, Japan, 27 juli 1991

“Catalytic oxygen transfer; a selective and versatile technology” Invited lecture, 1991 RSC Autumn Meeting, York, United Kingdom, 24-26 September 1991

 

1990

Synthesis of optically active compounds via crystallization techniques Invited lecture, Chiral '90, Manchester, 18-19 September 1990

“Heterogeneous catalytic oxidation and fine chemicals manufacture” , Plenary lecture, Symposium on Heterogeneous Catalysis & Fine Chemicals, Poitiers, 2-5 October, 1990

“Catalytic oxidation: a clean & versatile technology” Invited lecture, International Student Congress 'Engineering a Better World through Chemistry', The Hague, 21-23 November, 1990

 
 
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