Congress Presentation
Speaker: Professor D. Vizza Professor H. Ghofrani (Giessen, DE)
Speaker: Professor A. Torbicki (Otwock, PL)
Speaker: Professor H. Ghofrani (Giessen, DE)
Speaker: Professor D. Vizza Professor H. Ghofrani (Giessen, DE) Professor P. Jansa (Prague, CZ) Professor A. Torbicki (Otwock, PL)