Fixed points of fuzzy functions

Janiš, Vladimír, 1963-

Fixed points of fuzzy functions / Vladimír Janiš

In Tatra Mountains mathematical publications. -- Bratislava : Slovenská akadémia vied, 1997. -- ISSN 1210-3195. -- ISSN 1338–9750. -- Vol. 12, no. 3 (1997), pp. 13-19