1. Anick, P. & Simoudis, E. (1993). Case-Based Reasoning and Information Retrieval: AAAI 1993 Spring Symposium Series Report. AI Magazine 14(3).
2. Cleverdon, C. W., Mills, J. & Keen, E. M. (1996). Factors Determining the Performance of Indexing Systems, Vol. 1-Design, Aslib Cranfield Research Project, Cranfield, England.
3. Croft, W. B. & Thompson, R. H. (1987). I3R: A New Approach to the Design of Document Retrieval Systems. Journal of the American Society for Information Science 38(6): 389?404.
4. Croft, W. B. (1993). Knowledge-Based and Statistical Approaches to Text Retrieval. IEEE Expert 8(2): 8?12.
5. Doszkocs, T. E., Reggia, J. & Lin, X. (1990). Connectionist Models and Information Retrieval, Annual Review of Information Science and Technology. American Society for Information Science 25.