Wierman JC, Ziff RM. Self-dual Planar Hypergraphs and Exact Bond Percolation Thresholds. Electron. J. Combin. [Internet]. 2011Mar.24 [cited 2026Mar.17];18(1):P61. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v18i1p61