SOFSEM '97: Theory and Practice of Informatics 24th Seminar on Current Trends in Theory and Practice of Informatics, Milovy, Czech Republic, November 22-29, 1997. Proceedings Plasil Frantisek Heftet / 1997 / Engelsk
Sharing Data, Information and Knowledge 25th British National Conference on Databases, BNCOD 25, Cardiff, UK, July 7-10, 2008, Proceedings Gray Alexander Heftet / 2008 / Engelsk
SOFSEM '96: Theory and Practice of Informatics 23rd Seminar on Current Trends in Theory and Practice of Informatics, Milovy, Czech Republic, November 23 - 30, 1996. Proceedings Jeffery Keith G. Heftet / 1996 / Engelsk
SOFSEM 2000: Theory and Practice of Informatics 27th Conference on Current Trends in Theory and Practice of Informatics Milovy, Czech Republic, November 25 - December 2, 2000 Proceedings Hlavac Vaclav Heftet / 2000 / Engelsk
