Luo, Fen, and Jianming Zhan. “REDEFINED GENERALIZED FUZZY R-SUBGROUPS OF NEAR-RINGS”. Italian Journal of Pure and Applied Mathematics 30 (May 24, 2013): 33–42. Accessed July 26, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/6118.