DeLaVina, Ermelinda, and Siemion Fajtlowicz. “Ramseyan Properties of Graphs”. The Electronic Journal of Combinatorics 3, no. 1 (August 28, 1996): R26. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v3i1r26.