%0 Journal Article %A S. V. Ivanov %T Strictly verbal products of groups and A.\,I.~Mal'tsev's problem on operations over groups %J Trudy Moskovskogo matematičeskogo obŝestva %D 1992 %P 243-277 %V 54 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1992_54_a7/ %G ru %F MMO_1992_54_a7