Team, S. “Proximal Point Algorithm Involving Best Proximity Point of Nonself Nonexpansive Mappings in Real Hilbert Spaces: Supalin Tiammee, Jukrapong Tiammee”. Thai Journal of Mathematics, vol. 18, no. 3, Sept. 2020, pp. 937–949, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1048.