1. Breck Baldwin. CogNIAC: high precision coreference with limited knowledge and linguistic resources. In Proceedings of ACL/EACL workshop on Operational factors in practical, robust anaphor resolution, pages 38–45, July 1997.
2. Antonio Ferrández, Manuel Palomar, Lidia Moreno. Slot Unification Grammar and Anaphora Resolution. In N. Nicolovand R. Mitkov, editors, Recent Advances in Natural Language Processing II, pp.155–166, J. Benjamins Publishing Company. 2000.
3. Robert J. Gaizauskas, Takahiro Wakao, Kevin Humphreys, Hamish Cunningham, and Yorick Wilks. Description of the LaSIE system as used for MUC-6. In Sixth Message Understanding Conference, pages 207–220, 1995.
4. Research report;J. R. Hobbs,1977
5. Kevin Humphreys, Robert Gaizauskas, Saliha Azzam, Christian R. Huyck, B. Mitchell, Hamish Cunningham, and Yorick Wilks. Description of the LaSIE-II System as Used for MUC-7. In Seventh Message Understanding Conference, 1998.