RadSoleimani G., and RahimiH. “Common Fixed-Point Theorems and <em class="a-Plus-plus">c</Em&gt;-Distance in Ordered Cone Metric Spaces”. Ukrains’kyi Matematychnyi Zhurnal 65, no. 12 (December 25, 2013): 1667–1680. Accessed November 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2545.