@article{PFMT_2021_3_a10,
     author = {I. N. Safonova and A. N. Skiba},
     title = {Generalized $\sigma$-subnormal and $\sigma$-permutable subgroups of finite groups},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {76--81},
     publisher = {mathdoc},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2021_3_a10/}
}