Hosseinzadeh, H., Jabbari, A., & Razani, A. (2013). Fixed-Point Theorems and Common Fixed-Point Theorems on Spaces Equipped With Vector-Valued Metrics. Ukrains’kyi Matematychnyi Zhurnal, 65(5), 734–740. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/2458