Altun, Ishak, et al. “Prešić-Type Fixed Point Results via Q-Distance on Quasimetric Space and Application to (p, Q)-Difference Equations”. Nonlinear Analysis: Modelling and Control, vol. 28, no. 6, Oct. 2023, pp. 1089-02, https://doi.org/10.15388/namc.2023.28.33436.