Hu, B., J. Huang, and N. M. Adarchenko. “On $\Pi$-Permutable Subgroups in Finite Groups”. Ukrains’kyi Matematychnyi Zhurnal 73, no. 10 (February 9, 2026): 1423–1431. Accessed February 16, 2026. https://umj.imath.kiev.ua/index.php/umj/article/view/768.