Fuzzy Sets and Systems
Fuzzy Sets and Systems > 1997 > 91 > 3 > 279-284
Fuzzy Sets and Systems > 1998 > 97 > 1 > 1-7
Fuzzy Sets and Systems > 1999 > 102 > 1 > 31-40
Fuzzy Sets and Systems > 1997 > 91 > 3 > 279-284
Fuzzy Sets and Systems > 1998 > 97 > 1 > 1-7
Fuzzy Sets and Systems > 1999 > 102 > 1 > 31-40