1. LOGIN: a logic programming language with built-in inheritance;Aït-Kaci;J. Logic Program,1986
2. Towards a general theory of action and time;Allen;Artif. Intell.,1984
3. The rhetorical knowledge representation system: a user's manual (for Rhet Version 14.0);Allen,1988
4. The HORNE reasoning system;Allen,1984
5. An examination of the efficiency of sorted deduction;Bloch,1989