%0 Journal Article %A J.A. Hildebrant %T Extending congruences on factors of ideally compactifiable semigroups. %J Semigroup forum %D 1976 %P 245-250 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1976__12_134177/ %F SF_1976__12_134177