Pan, Jiangmin, Bengong Lou, and Cuifeng Liu. “Arc-Transitive Pentavalent Graphs of Order 4pq”. The Electronic Journal of Combinatorics 20, no. 1 (February 18, 2013): #P36. Accessed May 12, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v20i1p36.