T. Sukkarnjanonth, and P. Chongstitvatana. Proc. of 4th National Computer Science and Engineering
Conference (NCSEC 2000), page 81--85. Queen Sirikit National Convention Center, Bangkok,
Thailand, (16-17 November 2000)
M. Akbarzadeh-T., E. Tunstel, K. Kumbla, and M. Jamshidi. Proceedings of the 1998 IEEE World Congress on
Computational Intelligence, 2, page 1200--1205. Anchorage, Alaska, USA, IEEE Press, (5-9 May 1998)