Multimedia, Hypertext und Internet Grundlagen und Praxis des elektronischen Publizierens Nielsen Jakob Heftet / 2012 / Tysk
Knowledge Acquisition for Knowledge-Based Systems 7th European Workshop, EKAW'93, Toulouse and Caylus, France, September 6-10, 1993. Proceedings Aussenac Nathalie Heftet / 1993 / Engelsk
Current Developments in Knowledge Acquisition - EKAW'92 6th European Knowledge Acquisition Workshop, Heidelberg and Kaiserslautern, Germany, May 18-22, 1992. Proceedings Wetter Thomas Heftet / 1992 / Engelsk
