%0 Journal Article %A S. V. Polin %T Free decompositions in varieties of $\Lambda$-groups %J Sbornik. Mathematics %D 1972 %P 389-407 %V 16 %N 3 %U http://geodesic.mathdoc.fr/item/SM_1972_16_3_a5/ %G en %F SM_1972_16_3_a5