D. Cutting, D. Karger, J. Pedersen, und J. Tukey. SIGIR '92: Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval, Seite 318--329. New York, NY, USA, ACM Press, (1992)
M. Akbarzadeh-T., E. Tunstel, K. Kumbla, und M. Jamshidi. Proceedings of the 1998 IEEE World Congress on
Computational Intelligence, 2, Seite 1200--1205. Anchorage, Alaska, USA, IEEE Press, (5-9 May 1998)
A. Bar-Or, D. Keren, A. Schuster, und R. Wolff. IEEE Transactions on Knowledge and Data Engineering -- Special Issue on Mining Biological Data, (August 2005)