TEAM, S. A Common Fixed Point Theorem for Gregus Type Mappings: S.D. Diwan, Rajlaxmi Gupta. Thai Journal of Mathematics, [S. l.], v. 12, n. 1, p. 103–112, 2014. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/438. Acesso em: 3 jul. 2024.