1. Text Understanding in LILOG,1991
2. Enabling technology for knowledge sharing;Neches;AI Magazine,1991
3. Zur intelligenten Organisation von Wissensbeständen in künstlichen Systemen;Wachsmuth,1989
4. Wachsmuth, I and Gängler, B ‘Knowledge packets and knowledge packet structures’ in Reference 1
5. Modularity for logical knowledge bases;Antoniou,1992