LATIF, A.; AL-MEZEL, S. A. Coincidence and fixed point results for non-commuting maps. Tamkang Journal of Mathematics, [S. l.], v. 39, n. 2, p. 105–110, 2008. DOI: 10.5556/j.tkjm.39.2008.20. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/20. Acesso em: 6 jul. 2022.