1. Planning English Sentences
2. Planning english referring expressions
3. R. Dale, 1988 . Generating referring expressions in a domain of objects and processes . Ph.D. thesis , Centre for Cognitive Science, University of Edinburgh, Edinburgh, United Kingdom.
4. 1989 . Cooking up referring expressions . Proceedings of the 27th Annual Meeting of the Association for Computational Linguistics, Vancouver, B.C., pp.68 -75 .