1. Ali, S. N. (1993). Subject relationship between articles determined by co-occurrence of keywords in citing and cited titles. Journal of Information Science, 19, 225–232.
2. Barry, C. L. (1994). User-defined relevance criteria: An exploratory study. Journal of the American Society for Information Science, 45, 149–159.
3. Barry, C. L. (1998). Document representations and clues to document relevance. Journal of the American Society for Information Science, 49, 1293–1303.
4. Bean, C. A. & Green, R. (1997, July). Development of a structured inventory of relationships. Paper presented at Beyond Word Relations, ACM SIGIR ‘97 Workshop, Philadelphia, PA.
5. Bean, C. A., Selden, C. R., Rindflesch, T. C., & Aronson, A. R. (1999). From bibliography to test collection: Enhancing topical relevance assessment for bibliographic information retrieval system evaluation. Proceedings of the 1999 AMIA Annual Fall Symposium, 1022.