%0 Journal Article
%A K. D. jr. Magill
%T Semigroups in which each      -class contains at most one regular ...-class.
%J Semigroup forum
%D 1977
%P 91-92
%V 15
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1977__15_134238/
%F SF_1977__15_134238