SOFSEM'99: Theory and Practice of Informatics 26th Conference on Current Trends in Theory and Practice of Informatics, Milovy, Czech Republic, November 27 - December 4, 1999 Proceedings - Pavelka, Jan; Pavelka, Jan; Tel, Gerard; Tel, Gerard; Bartosek, Miroslav; Bartosek, Miroslav (Springer Berlin Heidelberg : Imprint: Springer, 1999)