Asim, Mohammad, and Mohammad Imdad. “Fixed Point and Best Proximity Point Results in PIV-S-Metric Spaces”. Annales Mathematicae Silesianae 39, no. 1 (June 7, 2024): 46–63. Accessed December 18, 2025. https://journals.us.edu.pl/index.php/AMSIL/article/view/17612.