31 August 1993 XIX World Congress of Philosophy. August 1993. Moscow-Russia. [foogallery id="7658"]...
22 August 1993 The World Congress on Universalism, 15-20 August, 1993. Warsaw- Poland. [foogallery id="7646"]...
21 September 1992 Philosophy of Science Conference, April, 1992. Dubrovnik-Croatia. [foogallery id="7643"]...
1 January 1992 International Conference “Philosophy of Science.” June 15-17, 1992. Beijing-China. [foogallery id="7639"]...
1 January 1991 Fulbright Senior Research Scholar at Harvard University, 1991. Cambridge, Massachusetts, U.S.A. [foogallery id="7622"]...
1 April 1990 Philosophy of Science Conference, April,1990. Dubrovnik-Yugoslavia. [foogallery id="7616"]...
1 March 1990 International Conference, “The American Philosophical Tradition,” State University of New York, Buffalo, March 1-4, 1990. Buffalo, U.S.A. [foogallery id="7614"]...
5 September 1989 C. S. Peirce Sesquicentennial Conference, Harvard University, September 5-10, 1989. Cambridge, Massachusetts, U.S.A. [foogallery id="7608"]...
10 September 1987 Rom Harré’ s lecture at the Department of Philosophy, AUTH. Thessaloniki, Fall 1987. [foogallery id="7605"]...