Kolev, Nikolay, and Nedyalko Nenov. “On the 2-Coloring Diagonal Vertex Folkman Numbers With Minimal Possible Clique Number”. Ann. Sofia Univ. Fac. Math. and Inf. 98 (December 12, 2008): 101–126. Accessed December 12, 2024. https://ftl5.uni-sofia.bg/index.php/fmi/article/view/132.