%0 Journal Article %A V. G. Durnev %A O. V. Zetkina %T On equations with subsemigroup constraints on solutions in free semigroups %J Čebyševskij sbornik %D 2010 %P 78-87 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2010_11_3_a7/ %G ru %F CHEB_2010_11_3_a7