Team, S. “Weak and Strong Convergence Theorems for Approximating Common Fixed Points of Three Nonexpansive Mappings: P. Glubudom”. Thai Journal of Mathematics, vol. 8, no. 3, Dec. 2010, pp. 447-5, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/213.