International Conf. on Control, Set-Valued Analysis and Applications, Pointe-a-Pitre, Guadeloupe, April 2004

1st Andean Congress on Operations Research, Cartagena, Colombia, March 2004

7th International Conf. on Approximation and Optimization in the Caribbean, Leon, Nicaragua, March 2004

International Conference on Modeling and Optimization, Temuco, Chile, January 2004

6th International Conference on Operation Research (APORS), New Delhi, India, December 2003

25th Brazilian Conference on Applied and Computational Mathematics, Rio Preto, Brazil, September 2003

International School on Variational Analysis, 5 lectures, Paseky, Czech Republic, April-May 2003