%0 Journal Article %A V. N. Lifshits %T On the existence of nonisomorphic nilpotent decompositions of nilpotent torsion-free groups %J Sbornik. Mathematics %D 1968 %P 137-146 %V 4 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1968_4_1_a8/ %G en %F SM_1968_4_1_a8