SOFSEM 2011: Theory and Practice of Computer Science : 37th Conference on Current Trends in Theory and Practice of Computer Science, Nový Smokovec, Slovakia, January 22-28, 2011. Proceedings - Ivana .erná, Tibor Gyimóthy, Juraj Hromkovi., Keith Jefferey, Rastislav Královi., Marko Vukoli., Stefan Wolf ((Lecture Notes in Computer Science))