%0 Journal Article %A A. V. Gladkii %T Groups with $k$-reducible basis %J Doklady Akademii Nauk %D 1960 %P 16-18 %V 134 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_134_1_a2/ %G ru %F DAN_1960_134_1_a2