Kosman , E. G. “On Geometric Characterization of Silovian $p$-Subgroups of the Limited Linear Group”. Ukrains’kyi Matematychnyi Zhurnal 40, no. 3 (April 28, 1988): 391–397. Accessed December 7, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/9155.