1. An intelligent Command Interpreter-ICI-with a Natural Language Interface;Aoe,1992
2. Discourse Pragmatics and Ellipsis Resolution in task-oriented natural Language Interfaces;Carbonell,1983
3. From Natural Language Processing to Logic for Expert Systems: a Logic Based Approach to Artificial Intelligence;Chichester Editor,1991
4. Time and modality in a natural language interface to a planning system;Crouch;Artificial Intelligence,1993
5. A natural language interface to a multiple databased office information system;Desai;SIGOIS Bulletin,1988