%0 Journal Article %A G.R. Baird %A G. Thierrin %T On semigroups in which every Rees one-sided congruence is a congruence. %J Semigroup forum %D 1972 %P 215-223 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1972__4_133896/ %F SF_1972__4_133896