Bonichon, Nicolas, and Benjamin Lévêque. “A Bijection for Essentially 4-Connected Toroidal Triangulations”. The Electronic Journal of Combinatorics 26, no. 1 (January 25, 2019): P1.13. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v26i1p13.