Mathematical Foundations of Computer Science 1999 24th International Symposium, MFCS'99 Szklarska Poreba, Poland, September 6-10, 1999 Proceedings - Kutylowski, Miroslaw; Kutylowski, Miroslaw; Pacholski, Leszek; Pacholski, Leszek; Wierzbicki, Tomasz; Wierzbicki, Tomasz (Springer Berlin Heidelberg : Imprint: Springer, 1999)