%0 Journal Article %A Siu-Ah Ng %T A new proof of Kelley's Theorem %J Fundamenta Mathematicae %D 1991 %P 63-67 %V 140 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-140-1-63-67/ %R 10.4064/fm-140-1-63-67 %G en %F 10_4064_fm_140_1_63_67