@article{PFMT_2020_4_a15,
     author = {I. M. Dergacheva and I. P. Shabalina and E. A. Zadorozhnyuk},
     title = {On the centralizer of the $\sigma$-nilpotent residual of the $\sigma$-subnormal subgroup},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {91--94},
     publisher = {mathdoc},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2020_4_a15/}
}