@article{SM_1987_57_2_a7,
     author = {A. V. Rozhkov},
     title = {On subgroups of infinite finitely generated $p$-groups},
     journal = {Sbornik. Mathematics},
     pages = {437--448},
     publisher = {mathdoc},
     volume = {57},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1987_57_2_a7/}
}