Among many others he has taken part in the following teaching activities overseas:

• Conference at the University of Social Sciences in Grenoble (France) on: "La Strategie des Investissements Internationaux" (The Strategy of International Investments), May 6, 1974.
• Conference at the Centre d'Etudes pratiques d'Informatique et Automatique (CEPIA) in Paris, on "Politique des investissements dans l'entreprise actuelle", (Investment policy in current business), June 26, 1974.
• Conferences at CEPIA, Paris, on: "Theorie des ensembles flous" [Theory of fuzzy sets]. Budget example at base Zero. (International Stage), September 24 - 27, 1986.
• Conference on "Los problemas de Dirección de Empresas" (Problems of business management) Economic University of Bielorussia. Minsk, October 20, 1992.
• Conferences on: The logic of the scientific reseach and the possibilities and limits of the fuzzy sets theory. National and World University of Economy. Sofia (Bulgaria) June 19 to 23, 1993.
• Conference on :"La lógica y la metodología de la investigación económica mediante la teoría de los subconjuntos borrosos", (Logic and methodology in economic investigation by means of the theory of the fuzzy sub-sets), at the National and World University of Sofia (Bulgaria) January 25, 1994.
• Conference on: "Theorie des incertitudes appliquée a la gestion et a certaines productions", (Theory of uncertainty applied to management and to certain productions) at the Sophia Antipolis Foundation. Antibes (France), March 20, 1995.
• Conference on: "Grafos neuronales y nuevos paradigmas en la teoría de la decisión", (Neural graphs and new paradigms in the theory of decision) at the Faculty of Economic Sciences of the University of Buenos Aires (Argentina) April 27, 1995.
• Conference on: "La creatividad en la pequeñas y medianas empresas" [Creativity in small and medium sized companies], given at the closing of the meeting on competitivity in small and medium sized companies. Administrative Investigation Institute of the University of Buenos Aires (Argentina), October 13, 1995.
• Conference on: "Méthode d´organisation d´entreprises: utilisation de la théorie des incertitudes" [Method of business organisation : use of the theory of uncertainty] given at the Fondation Sophia Antipolis. Antibes (France). November 27, 1995.
• Conference on: "La Théorie des Ensembles Flous dans les organisations d'Entreprise" [The theory of fuzzy sets within business organisation]. Sophia Antipolis Foundation, Antibes (France), June 5, 1996.
• Conference on: "Incertitude, risque et gestion de l'entreprise" [Uncertainty, risk and business management] Faculty of Law, Economy and Social Sciences at the University of Angers (France), October 24, 1996.
• Conference on: "L'utilisation des ensembles flous dans les sciences humains" [The use of fuzzy sets in human sciences]. I.A.E. University of Nice (France), December 2, 1996.
• Conference on: Applications de la théorie des sous-ensembles flous a la production" [Application of the theory of fuzzy sub-sets to production]. Sophia Antipolis Foundation, Antibes (France), December 2, 1996
• Conference on: "Surgimiento, desarrollo y perspectivas de las Técnicas Borrosas" [Appearance, development and perspectives of Fuzzy Techniques] Oriente University, Santiago de Cuba, February 11, 1997.
• Conference on: Aplicación de las Técnicas Borrosas en la Investigación de Operaciones" [Application of fuzzy techniques in operational investigation] Faculty of Economic and Business Science. Santiago de Cuba, February 12, 1997.
• La scienza economica e la nuova teoría della decisione" [Economic science and the new thoery of decision] Conference given at the investiture as "Laurea Honoris Causa" by the University of Reggio Calabria, (published in Helios Magazine No. 6 year II page 65-68). Reggio Calabria (Italy), November 7, 1997.
• "Ciencia, economía y desarrollo económico" [Science, economy and economic development]. Conference given at the investiture act as "Doctor Honoris Causa" by the University of Santiago de Cuba, November 18, 1997.
• Conference on: Méthode des Ensembles Flous appliquée à la gestion des structures d'entreprises" [Method of Fuzzy Sets applied to the management of business structures] Sophia Antipolis Foundation, Antibes (France), March 5, 1998.
• Conference on: Sport et Economie" [Sport and Economy]. University of Perpignan (France), March 24, 1998.
• Conference on: "Mesures des Performance des entreprises en comptabilité financière et comptabilite de gestion [Measuring prerformance of enterprise in financial accountancy and management accountancy] Seminar at the French Doctoral Association of Accountancy, Nantes (France), May 14, 1998.
• "Relations: basic concept in the Decision Theory" Commencement address at the International Conference on Systems and Signals in Intelligent Technologies. State University of Bielorussia. Minsk (Bielorussia), September 28, 1998.
• "Vers une nouvelle théorie de la decision" [Towards a new theory of decision] Innaugural conference at the SIGEF '98 Congress. Lausanne (Switzerland) November 24, 1998.
• Conference on: "La logique multivalente appliquée au domaine de management" [Multivalent logic applied to management] Federal Polytechnique School, Lausanne (Switzerland) November 24, 1998.
• "Management of Uncertainty in Practical Problems". Conference given at the Faculty of Engineering of the University of Reggio Calabria (Italy), November 30, 1998.
• "Teoría de la incertidumbre: Un nuevo paradigma para la toma de decisiones" [The teory of uncertainty: A new paradigm for taking decisions]. Conference given at the Faculty of Economic and Social Sciences of Mérida (Venezuela), February 2, 1999.
• "Un outil mathématique au service de l'aide à la décision: la méthode experton et la logique flous". [A mathematical tool in the service of decision: the experton method and fuzzy logic]. Conference given in Eupen (Belgium), February 9, 1999.
• "Politiche di sviluppo e occupazione a sostengo delle tematiche ambientali". Conference given at Villa San Giovanni (Italy), February 25, 1999.
• "Neural Networks". Conference given at the III Summer School "Economics as a complex system". International Institute for Advanced Scientific Studies. Vietri (Italy), May 22, 1999.
• "Neural Graphs in the handling of economic and management problems" Conference given by invitation at the WIRN'99. Vietri (Italy), May 22, 1999.
• “El futuro de la investigación económica en el ambito de la iincertidumbre”. (The future in economic research in the sphere of uncertainty) Inaugural conference of the SIGEF Congress, Morelia (México) November 15, 1999.
• “Modélisation de l´activité sportive dans l´incertain” (Modelisation of sporting activity in ucertainty) Paper presented at the Atelier de Modélistion et Prevision. University of Aix-Marseille University. Aix-en-Provence. (France). January 14 2000.
• “Aplicaciones de las mtematicas borrosas en la solución de problemas empresariales”. (Fuzzy mathematical application to resolving business problems). Paper presented at the Faculty of Economic and Bussiness Science. University. Oriente University. Santiago de Cuba, June 16, 2000.
• “ La recherche scientifique face aux changements économiques”. (Scientific research faced by economic changes). Conference given in Chapelle Saint Dominique maked for the imposicion “Honoris Causa” Doctor, for Perpignan University (France) 13 october 2000.
• “ La recherche scientifique face aux changements économiques”. (Scientific research faced by economic changes. Paper presented at the Unversity of Reunion. Saint-Denis (La Réunion), November 25, 2000.
• “Avenir de l´activité scientifique dans le domaine de la simulation et modélisation”. (The future of Scientific activity in simulation and modelling). Paper presented at the National Institute of Mail and Telecommunications.. Rabat (Morrocco) March 19, 2001.
• “Le prospettive dell´economia nello spazio Mediterraneo” (Economy future in Mediterranean space). Conference given in Aula Magna in Facoltà de Ingenieria of the University Mediterranean of Reggio Calabria. (Publication). Reggio (Italy), 8 february 2002.
• “De la prétopologie à la théorie des affinités. Nouvelles perspectives en économie et gestion”. [ To pretopology to afinity theroy. News perspectives in management economy ] Conference given in Romana Academy. Bucarest ( Rumany ), May 27, 2002.
• “I problemi connessi con la gestione delle società sportive”. [The problems in management of sportif society ] . Conference given in Associazione Culturale Anassilaos in colaboration with Mediterranean University of Reggio Calabria ( Italy ), Juin 1, 2002.
• “La nuova centralità del Mediterraneo nel quatro dell’economia internazionale” (The New mediterranean centrality in international economic places ). Conference maked in Unveristy degli Studi di Messina. Messina ( Italy ), October 29, 2002.
• “Incorporation of uncertainty in pretopology”. Conference plenary in inauguration of IX SIGEF Congress. Mérida ( Venezuela ), November 25, 2002.
  
• “Las leyes del determinismo y la concepción darwiniana de la investigación económica” [The laws of determinism and the Darwininan conception of economic research]. Conference given at the “Montesquieu” University of Bordeaux at the act of conferring the attributes of Doctor “Honoris Causa”. Burdeaux (France), May 13, 2003.
• “La incertidumbre como realidad y como concepción metodológica” [Uncertainty as a reality and as a methodological conception]. Conference given in the Auditórium of the Mayor de San Andrés University. La Paz (Bolivia), May 26, 2003.
• “La reconstrucción del concepto de Fondo de Maniobra” [Reconstruction of the concept of Working Capital]. Conference given Michoacán University. Morelia (Mexico), June 13, 2003.
• “Luces y sombras en la génesis de una ciencia mediterránea” [Lights and shadows in the genesis of a Mediterranean science]. Conference given at the University of Messina at the act of conferring the attributes of Doctor “Honoris Causa”. Messina (Italy) February 27, 2004.
• “La actividad científica en el contexto euro-mediterráneo” [Scientific activity in the Euro-Mediterranean context]. Conference given at the Meeting with the Academy of the Kingdom of Morroco (published). Rabat (Morroco). May 28, 2004.
• “ Las lógicas multivalentes en el ámbito de la economía y la gestión de empresas” [Multivalent logic within the sphere of economy and business management]. Conference given at the Ecole Supérieure des Sciences Economiques et Commerciales (ESSEC) of the University of Tunisia, February 3, 2005.
• “Nuevas perspectivas de la investigación científica en economía y gestión de empresas” [New perspectives in scientific research in economy and business management]. Conference given at the Faculty of Economy and Management Sciences (Tunisia), February 4, 2005.
• “Evolución o revolución de la investigación científica” [Evolution and revolution of scientific research] Paper presented at the closing of the AMSE Internationalonal Conference 2005. Morelia (Mexico) April 29, 2005.
• “Le nuove realtà e loro interpretazione scientifica”. Conference given at the Club di Terni. Terni (Italy) May 19, 2005.
• “Nuevos avances en el tratamiento de la complejidad en Economía y Gestión de Empresas” [New advances in the treatment of complexity in Economy and Business Management]. Conference given at the Polo Universitario por Terni. Terni (Italy) May 20, 2005.
• “Nouvelles perspectives des sciences économiques dans un monde d’incertitudes” [New perspectives of economic sciences in a world of uncertainties]. Conference given at the act of conferring the attributes of Doctor “Honoris Causa” for the Petrosani University. Petrosani (Rumania) May 23, 2005.
• “Las nuevas corrientes de la actividad científica ante la complejidad”.[New trends of scientific activty faced by compexity] Conference given at the Centro de Investigación y Desarrollo del Estado de Michoacan. [State Research and Develoment Centre oif the State of Michoacan] Morelia (Mexico) Septe,ber 8, 2005.
• “Nations et minorités dans la Communauté Européenne” [Nations and Minorities within the European Community] Conference given at en Sinaia (Rumania) September 29, 2005.
• “Marruecos y España: desafíos y retos de una asociación de progreso”. [Morocco and Spain: trials and challenges of an association for progress] Conference given at the I Hispano-Moroccan Business Meeting. Sevilla, November 17 2005.
• “La ciencia en el contexto Euro-Mediterráneo”.[Science in the Euro-Mediterranean Context] Conference given at Sinaia (Rumania) September 23, 2006.
• “La actividad científica frente a la complejidad económica”.[Scientific Activity faced by economic complexity] Conference given at the Solemn Session of the Economic Section of the Rumanian Academy. (Bucharest) September 25, 2006.
• “El determinismo y la libertad en la Europa mediterránea” [Determinism and freedom within Mediterranean Europe]. Conference given at the III Solemn International Act of the Real Academia de Ciencias Económicas y Financieras. Barcelona November 16, 2006.
• “Géometrisme et évolutionisme dans la science économique”. Conference given at the Opening Session of the XII International SIGEF Conference SIGEF’2006. Hammamet (Tunisia) November 30, 2006.
• “La formalización de las nuevas realidades complejas. Movilidad, economía y cultura” [Fomalisation of the new complex realities. Mobility, economy and cuture] Conference given at the Opening Session of the XIV SIGEF Congress, Poiana Brasov (Rumania) November 1, 2007.
• “Global directions of new economic thinking”. Conferencea given at the ceremony of induction as Doctor “Honoris Causa” by the Azerbaijan State Economic Universtiy. Baku (Azerbaijan) November 23, 2007.
• “Le retour de la source des connaissances aux espaces méditerranéens”. Conference given within the framework of the manifestations “Alger capitale de la culture Arabe 2007. Argel (Algeria) December 18, 2007.