@article{DAN_1957_114_6_a4,
     author = {M. I. Kargapolov},
     title = {Factorization of $\Pi$-separable groups},
     journal = {Doklady Akademii Nauk},
     pages = {1155--1157},
     publisher = {mathdoc},
     volume = {114},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_114_6_a4/}
}