Fuzzy Sets and Systems
Fuzzy Sets and Systems > 1998 > 94 > 3 > 275-286
Fuzzy Sets and Systems > 1998 > 96 > 3 > 307-334
Fuzzy Sets and Systems > 1998 > 97 > 1 > 101-107
Fuzzy Sets and Systems > 1998 > 94 > 3 > 275-286
Fuzzy Sets and Systems > 1998 > 96 > 3 > 307-334
Fuzzy Sets and Systems > 1998 > 97 > 1 > 101-107