LymanF. N. “On Groups With Minimality Condition for Noninvariant Abelian Pd-Subgroups”. Ukrains’kyi Matematychnyi Zhurnal 57, no. 2 (February 25, 2005): 265-270. Accessed November 22, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3594.