Congress Presentation
Speaker: Professor L. Sade (Pittsburgh, US) Doctor K. Yiangou (Nicosia, CY) Doctor I. Stankovic (Belgrade, RS) Doctor L. Herbots (Hasselt, BE)
Speaker: Professor A. Hagendorff (Leipzig, DE) Professor F. Weidemann (Recklinghausen, DE) Assistant Professor O. Breithardt (Kassel, DE) Doctor S. Stoebe (Leipzig, DE)
Speaker: Professor F. Weidemann (Recklinghausen, DE) Professor P. Sengupta (New Brunswick, US) Doctor L. Herbots (Hasselt, BE)