Tanaka, Hajime, and Tao Wang. “The Terwilliger Algebra of the Twisted Grassmann Graph: The Thin Case”. The Electronic Journal of Combinatorics 27, no. 4 (October 30, 2020): #P4.15. Accessed April 24, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i4p15.