@article{PFMT_2017_3_a7,
     author = {E. V. Zubei},
     title = {On finite groups with {Schmidt} subgroups of rank 4},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {48--51},
     publisher = {mathdoc},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2017_3_a7/}
}