Mária Bieliková, Gerhard Friedrich, Georg Gottlob, Stefan Katzenbeisser, György Turán: SOFSEM 2012: Theory and Practice of Computer Science - 38th Conference on Current Trends in Theory and Practice of Computer Science, Špindlerův Mlýn, Czech Republic, January 21-27, 2012. Proceedings. Lecture Notes in Computer Science 7147, Springer 2012, ISBN 978-3-642-27659-0