AKRAM, Muhammad; LI, Sheng-Gang; SHUM, K.P. ANTIPODAL BIPOLAR FUZZY GRAPHS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 31, p. 97–110, 2013. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6155. Acesso em: 26 jul. 2026.