KRSTESKA, Biljana. FUZZY SP-IRRESOLUTE MAPPING. Matematichki Bilten, [S. l.], v. 21, n. 1, p. 67–80, 1997. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1578. Acesso em: 14 aug. 2026.