FUZZY SETS AND SYSTEMS, vol. 130, no. 2, page. 207 - 225, 2002-09-01
PATTERN RECOGNITION, vol. 36, no. 11, page. 2723 - 2735, 2003-11
PATTERN RECOGNITION, vol. 37, no. 2, page. 337 - 349, 2004-02
IEICE TRANSACTIONS ON COMMUNICATIONS, vol. E90B, no. 4, page. 826 - 835, 2007-04
LECTURE NOTES IN COMPUTER SCIENCE, vol. 2688, page. 946 - 954, 2003-01
LECTURE NOTES IN COMPUTER SCIENCE, vol. 2688, page. 302 - 309, 2003-01