@article{AL_1987_26_1_a4,
     author = {V. P. Shunkov},
     title = {$M_p$-groups with a kernel of arbitrary rank},
     journal = {Algebra i logika},
     pages = {84--105},
     year = {1987},
     volume = {26},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1987_26_1_a4/}
}