%0 Journal Article
%A V. G. Sokolov
%T An analogue of Witt's formula for free solvable groups
%J Algebra i logika
%D 1969
%P 367-372
%V 8
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1969_8_3_a7/
%G ru
%F AL_1969_8_3_a7