%0 Journal Article %A Knight, C. J. %T Compactness and ordinals %J Glasgow mathematical journal %D 1972 %P 153-158 %V 13 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001580/ %R 10.1017/S0017089500001580 %F 10_1017_S0017089500001580