Barnard, Emily, Nathan Reading, and Ashley Tharp. “Noncrossing Arc Diagrams of Type B”. The Electronic Journal of Combinatorics 33, no. 4 (November 6, 2026): #P4.35. Accessed November 6, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v33i4p35.