Fuzzy Sets and Systems
Fuzzy Sets and Systems > 2003 > 134 > 2 > 231-281
Fuzzy Sets and Systems > 2003 > 134 > 2 > 283-295
Fuzzy Sets and Systems > 2003 > 134 > 2 > 297-303
Fuzzy Sets and Systems > 2003 > 134 > 2 > 209-229
Fuzzy Sets and Systems > 2003 > 134 > 2 > 305-310