@article{PFMT_2015_2_a7,
     author = {N. S. Kosenok},
     title = {Finite groups with $s$-normal maximal subgroups},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {53--55},
     publisher = {mathdoc},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2015_2_a7/}
}