Yin, Jian-Hua, and Yin, Meng-Xiao. “The Smallest Degree Sum That Yields Potentially K r1,r2,. ,rl,2,s-Graphic Sequences”. Utilitas Mathematica, vol. 78, May 2009, https://utilitasmathematica.com/index.php/Index/article/view/634.