Rad SG, Rahimi H. Common Fixed-Point Theorems and c-distance in Ordered Cone Metric Spaces. Ukr. Mat. Zhurn. [Internet]. 2013 Dec. 25 [cited 2025 Dec. 6];65(12):1667–1680. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2545