%0 Journal Article
%A Ju.G. Koselev
%T Varieties preserved under wreath products.
%J Semigroup forum
%D 1976
%P 95-108
%V 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1976__12_134162/
%F SF_1976__12_134162