RAD, Soleimani G.; RAHIMI, H. Common Fixed-Point Theorems and c-distance in Ordered Cone Metric Spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 12, p. 1667–1680, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2545. Acesso em: 6 dec. 2025.