%0 Journal Article %A Yu. A. Kolmakov %T Residual finiteness with respect to conjugacy of free polynilpotent groups %J Sbornik. Mathematics %D 1985 %P 299-323 %V 50 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1985_50_2_a1/ %G en %F SM_1985_50_2_a1