@article{TIMB_2013_21_1_a7,
     author = {V. N. Kniahina},
     title = {Finite groups with $\mathbb{P}$-subnormal biprimary subgroups},
     journal = {Trudy Instituta matematiki},
     pages = {63--68},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2013_21_1_a7/}
}