Muangchoo-in, K., and P. Kumam. “The Existence and Approximation Fixed Point Theorems for Monotone Nonspreading Mappings in Ordered Banach Spaces”. Journal of Informatics and Mathematical Sciences, vol. 11, no. 3-4, Dec. 2019, pp. 407-19, doi:10.26713/jims.v11i3-4.419.