A common fixed point theorem for four mappings in intuitionistic fuzzy metric space. Gulf Journal of Mathematics, [S. l.], v. 2, n. 4, 2014. DOI: 10.56947/gjom.v2i4.210. Disponível em: https://www.gjom.org/index.php/gjom/article/view/210. Acesso em: 21 aug. 2026.