1. K. Aas, L. Eikvil, Text categorisation: a survey, Technical Report, Norwegian Computing Center, 1999.
2. Data warehouse support to data mining;Angstenberger;J. Data Warehousing,1998
3. Modern Information Retrieval;Baeza-Yates,1999
4. Fuzzy Models and Algorithms for Pattern Recognition and Image Processing;Bezdek,1999
5. Data preparation for mining world wide web browsing patterns;Cooley;J. Knowledge Inform. Systems,1999