Deb, Bishal. “Bijection Between Increasing Binary Trees and Rook Placements on Double Staircases”. The Electronic Journal of Combinatorics 30, no. 1 (January 13, 2023): #P1.10. Accessed May 23, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v30i1p10.