Popa, V., and A.-M. Patriciu. “GENERAL FIXED POINT THEOREMS FOR PAIRS OF EXPANSIVE MAPPINGS WITH COMMON LIMIT RANGE PROPERTY IN $G$ - METRIC SPACES”. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), vol. 7, no. 2, Feb. 2018, pp. 105-14, https://ph03.tci-thaijo.org/index.php/jnao/article/view/2837.