%0 Journal Article
%A K.H. Hofmann
%A W.A.F. Ruppert
%T Foliations induced by congruences.
%J Semigroup forum
%D 1989
%P 365-370
%V 38
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1989__38_2_134967/
%F SF_1989__38_2_134967