%0 Journal Article %A JU. G. KOSELEV %T Wreath Products and Equations in Semigroups - in Russisch %J Semigroup forum %D 1975 %P 1-13 %V 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1975__11_186351/ %F SF_1975__11_186351