Craig, Andrew, Miroslav Haviar, and José São João. “Dual Digraphs of Finite Semidistributive Lattices”. CUBO, A Mathematical Journal 24, no. 3 (December 21, 2022): 369–392. Accessed October 12, 2025. https://cubo.ufro.cl/index.php/cubo/article/view/3205.