%0 Journal Article
%A A.N. Trahtman
%T The varieties of n-testable semigroups.
%J Semigroup forum
%D 1983
%P 309-318
%V 27
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1983__27_134628/
%F SF_1983__27_134628