Mehmood, M., H. Isik, F. Uddin, and A. Shoaib. “New Fixed Point Theorems for Orthogonal $F_m$-Contractions in Incomplete $m$-Metric Spaces”. Carpathian Mathematical Publications 13, no. 2 (August 29, 2021): 405–412. Accessed December 9, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/4111.