Sengupta, Richik, Zukhra Zhukovskaya, and Sergey Zhukovskiy. 2020. “On Properties of Coincidence Points of Mappings Between $(q_1,q_2)$-Quasimetric Spaces”. Advances in Systems Science and Applications 20 (1), 91-103. https://doi.org/10.25728/assa.2020.20.1.854.