@article{PFMT_2018_2_a12,
     author = {Z. Chi and V. G. Safonov and A. N. Skiba},
     title = {On one application of the theory of $n$-multiply $\sigma$-local formations of finite groups},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {85--88},
     publisher = {mathdoc},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2018_2_a12/}
}