Academy of Sciences of the Czech Republic. Mathematical Institute. Mathematica Bohemica (Math. Bohem.) (20240101), 149, no.~2, 237-246. ISSN: 0862-7959 (print).eISSN: 2464-7136.
2015 Annual Conference of the North American Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC) Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC), 2015 Annual Conference of the North American. :1-5 Aug, 2015