%0 Journal Article
%A J. Kadourek
%T On varieties of combinatorial   inverse semigroups II.
%J Semigroup forum
%D 1992
%P 53-78
%V 44
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1992__44_1_135128/
%F SF_1992__44_1_135128