- Peter van Emde Boas, Jaroslav Pokorný, Mária Bieliková, Julius Stuller, editors, SOFSEM 2004: Theory and Practice of Computer Science, 30th Conference on Current Trends in Theory and Practice of Computer Science, Merin, Czech Republic, January 24-30, 2004. Volume 2932 of Lecture Notes in Computer Science, Springer, 2004.