@article{DAN_1960_130_3_a2,
     author = {A. I. Mal'tsev},
     title = {On free soluble groups},
     journal = {Doklady Akademii Nauk},
     pages = {495--498},
     publisher = {mathdoc},
     volume = {130},
     number = {3},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_3_a2/}
}