Fuzzy Sets and Systems. An International Journal in Information Science and Engineering (Fuzzy Sets and Systems) (20150101), 281, 198-218. ISSN: 0165-0114 (print).eISSN: 1872-6801.
Fuzzy Sets and Systems. An International Journal in Information Science and Engineering (Fuzzy Sets and Systems) (20100101), 161, no.~20, 2695-2708. ISSN: 0165-0114 (print).eISSN: 1872-6801.