%0 Journal Article
%A B. Billhardt
%T On a semigroup theoretic  generalization of the Kaluznin Krasner Theorem  and normal extensions of inverse semigroups.
%J Semigroup forum
%D 1992
%P 364-372
%V 44
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1992__44_1_135160/
%F SF_1992__44_1_135160