Team, Support. “Coupled Fixed Point Theorems under Nonlinear Contractive Conditions in S-Metric Spaces: Mohammad Mahdi Rezaee, Shaban Sedghi”. Thai Journal of Mathematics 19, no. 4 (December 1, 2021): 1519–1526. Accessed May 20, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1250.