Fuzzy Sets and Systems
Fuzzy Sets and Systems > 1999 > 101 > 1 > 137-141
Fuzzy Sets and Systems > 1999 > 103 > 1 > 183-187
Fuzzy Sets and Systems > 1999 > 103 > 3 > 457-464
Fuzzy Sets and Systems > 1999 > 103 > 3 > 427-434
Fuzzy Sets and Systems > 1999 > 105 > 1 > 165-169
Fuzzy Sets and Systems > 1999 > 105 > 1 > 177-179
Fuzzy Sets and Systems > 1999 > 107 > 1 > 25-35
Fuzzy Sets and Systems > 1999 > 108 > 1 > 83-90
Fuzzy Sets and Systems > 1999 > 108 > 3 > 325-332