Bean, Christian, Émile Nadeau, Jay Pantone, and Henning Ulfarsson. “Permutations Avoiding Bipartite Partially Ordered Patterns Have a Regular Insertion Encoding”. The Electronic Journal of Combinatorics 31, no. 3 (July 12, 2024): P3.3. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v31i3p3.