SOFSEM 2008: Theory and Practice of Computer Science - Geffert, Viliam; Bertoni, Alberto; Bieliková, Mária; Kanade, Takeo; Karhumäki, Juhani; Návrat, Pavol; Preneel, Bart; Bertoni, A.; Kittler, Josef; Navrat, P. (Springer Berlin Heidelberg, 2008)