Fundamentals of Computation Theory International Conference FCT '89, Szeged, Hungary, August 21-25, 1989. Proceedings Csirik Janos Heftet / 1989 / Engelsk
Advances in Databases and Information Systems 8th East European Conference, ADBIS 2004, Budapest, Hungary, September 22-25, 2004, Proceedings Gottlob Georg Heftet / 2004 / Engelsk
