1. A Formal Definition for the Expressive Power of Knowledge Representation Languages;Baader F.;Proceedings of the 9th European Conference on Artificial Intelligence,1990
2. F. Baader H.-J. Bürckert J. Heinsohn B. Hollunder J. Müller B. Nebel W. Nutt H.-J. Profitlich. Terminological Knowledge Representation: A Proposal for a Terminological Logic. DFKI Technical Memo TM-90--04 DFKI Postfach 2080 D-6750 Kaiserslautern West Germany. F. Baader H.-J. Bürckert J. Heinsohn B. Hollunder J. Müller B. Nebel W. Nutt H.-J. Profitlich. Terminological Knowledge Representation: A Proposal for a Terminological Logic. DFKI Technical Memo TM-90--04 DFKI Postfach 2080 D-6750 Kaiserslautern West Germany.
3. F. Baader P. Hanschke. A Schema for Integrating Concrete Domains into Concept Languages. DFKI Research Report DFKI Postfach 2080 D-6750 Kaiserslautern West Germany. Forthcoming. F. Baader P. Hanschke. A Schema for Integrating Concrete Domains into Concept Languages. DFKI Research Report DFKI Postfach 2080 D-6750 Kaiserslautern West Germany. Forthcoming.