Li, X.H. and Xu, Y. (2014) “Second Maximal Subgroups of a Sylow p-Subgroup and the p-Nilpotency of Finite Groups”, Ukrains’kyi Matematychnyi Zhurnal, 66(5), pp. 694–698. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2170 (Accessed: 5 December 2025).