Lecture Notes in Computer Science : 37th Conference on Current Trends in Theory and Practice of Computer Science Nový Smokovec, Slovakia, January 22-28, 2011 Proceedings - Černá, Ivana; Gyimóthy, Tibor; Jeffery, Keith; Hromkovič, Juraj; Královič, Rastislav; Vukolic´, Marko; Wolf, Stefan (Springer-Verlag Berlin Heidelberg, 2011)