%0 Journal Article
%A T.A. Martynova
%T The groupoid of 0-reduced varieties of Semigroups (n).
%J Semigroup forum
%D 1983
%P 249-274
%V 26
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1983__26_134608/
%F SF_1983__26_134608