Lavrauw, Michel, and Corrado Zanella. “Subspaces Intersecting Each Element of a Regulus in One Point, André-Bruck-Bose Representation and Clubs”. The Electronic Journal of Combinatorics 23, no. 1 (February 19, 2016): #P1.37. Accessed May 23, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v23i1p37.