Sengupta, R., Zhukovskaya, Z. T., & Zhukovskiy, S. E. (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