%0 Journal Article %A F. Jing %T Abundant semigroups with a medical idempotent. %J Semigroup forum %D 1995 %P 247-262 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1995__51_1_135412/ %F SF_1995__51_1_135412