%0 Journal Article %A R. NIELSEN %A C. SLOYER %T Ideals of Semi-Continuous Functions and Compactifications of T1 Spacies. %J Mathematische Annalen %D 1970 %P 329-331 %V 187 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1970__187_162029/ %F MAN_1970__187_162029