[1]
KamornikovS.F. and TyutyanovV.N. 2020. On $\sigma$-subnormal subgroups of finite 3’-groups. Ukrains’kyi Matematychnyi Zhurnal. 72, 6 (Jun. 2020), 806-811. DOI:https://doi.org/10.37863/umzh.v72i6.1037.