'The reference to 'alternative' standards by French large groups: an empirical study over the period 1985 - 1999'. Illinois International Accounting Symposium, CIERA, University of Illinois at Urbana-Champaign, USA, March th 25 Annual Meeting of the European Accounting Association 15-16, , April 25-27, 2002, Copenhagen, Denmark (in coll. with Y. Ding).

'Proposition d'un cadre conceptuel pour les manipulations comptables' , Laboratoire de Finance de l'Institut de Recherche en Gestion (IRG), Ecole Supérieure des affaires (ESA), University of Paris Val de Marne, 4 February 2002 ; Research Center in International Accounting and Control (CRECCI), University of Bordeaux IV, 15 May 2002 (in coll. with G. Breton).

'The 24 Annual 'The 24 Annual Internationalization of Financial Statements Presentation: an Empirical Study of French Groups', Meeting of the European Accounting Association , April 18-20, 2001, Athens, Greece - Conference on Emerging Issues in International Accounting, Niagara University, USA, August 2-4, 2001 (in coll. with Y. Ding).

'A Review of Research on Accounts Manipulation', FNEGE Seminar, 'Doing research in financial accounting', rd 23 Annual Meeting of the European Accounting Association 15 March 2000, La Londe les Maures, France; , April 29-31, 2000, Munich, Germany (in coll. with G. Breton).

'Accounting for Brands in IAS 38 of IASC (Intangible Assets) Compared with French and German Practices. An Illustration of the Difficulty of International Harmonization'. Conference on 'Emerging Issues in International Accounting', August 5 -7, 1999, Niagara Falls, USA (in coll. with A. Haller and V. Klockhaus).

'How Accounting Standards Approach and Classify Intangibles - An International Survey', Annual Meeting of the European Accounting Association, May 5-7, 1999, Bordeaux, France (in coll. with A. Jeny).

'International Accounting Education in Western Europe', Workshop - Amos Tuck School at Dartmouth College, May 29, 1998, Hanover, USA (in coll. with M. Tenenhaus).

'The Integration of Financial Accounting, Management Accounting and Cash Flow Accounting: The Users' Opinion', Annual Meeting of the European Accounting Association, April 6 -9, 1998, Antwerpen, Belgium (in coll. with P. Touron). Workshop - Amos Tuck School at Dartmouth College, May 29, 1998, Hanover, USA (in coll. with P. Touron).

'Accounting for Brands in ED50 of IASC (Intangible Assets) Compared with French and German Practices - An Illustration of the Difficulty of International Harmonization', Annual Meeting of the European Accounting Association, May 2-4 1996, Bergen, Norway (in coll. with A. Haller).

'Value Added Accounting in Germany and France - A Conceptual and Empirical Comparison', Annual Meeting of the European Accounting Association, May 11-12, 1995, Birmingham, Great Britain (in coll. with A. Haller).

'Privatizing a Bulgarian State Enterprise: SomeTechnical and Cultural Aspects of Shifting Accounting Paradigms. A Case Study with International Financial Analyses', Annual Meeting of the European Accounting Association, April 1994, Venice, Italy (in coll. with M. Berry).

'Les engagements de mutuelle et de prévoyance', Association IMA -NAA, January 18, 1994, Paris (in coll. with G. Briens).

'Evaluation et comptabilisation des engagements de retraite', Summer Programs of the French Institute of C.P.A, September 1993, Versailles (in coll. with G. Briens and J. Mackey).

'The 'Unified Accounting System': How to Implement On -Line Cash- Flow Accounting', Annual Meeting of the European Accounting Association, April 1993, Turku, Finland.

'Evaluation et comptabilisation des engagements de retraite', Summer Programs of the French Institute of C.P.A., September 1992, Versailles (in coll. with J. Mackey).

'Stratégie financière et tableau de financement', international symposium: 'L'Analyse Financière par les flux: mode ou modèle', December 1990, Nice.

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