Tisklang, Chunya, and Sayan Panma. “On Vertex-Transitive Cayley Graphs of Finite Transformation Semigroups With Restricted Range”. Communications in Mathematics and Applications 9, no. 2 (June 30, 2018): 219–227. Accessed December 22, 2024. http://rgnpublications.com/journals/index.php/cma/article/view/640.