LUO, Fen; ZHAN, Jianming. REDEFINED GENERALIZED FUZZY R-SUBGROUPS OF NEAR-RINGS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 30, p. 33–42, 2013. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6118. Acesso em: 26 jul. 2026.