Team, Support. “A New Common Fixed Point Theorem for Six Self-Mappings in Complete Metric Spaces: Feng Gu, Xiaotang Shi”. Thai Journal of Mathematics 10, no. 1 (April 1, 2012): 75–88. Accessed December 22, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/302.