Radenovic´, Stojan, Tran Van Van An, and Le Thanh Thanh Quan. “Some Coincidence Point Results for T-Contraction Mappings on Partially Ordered B-Metric Spaces and Applications to Integral Equations”. Nonlinear Analysis: Modelling and Control 22, no. 4 (July 10, 2017): 545–565. Accessed April 29, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/13384.