%0 Journal Article %A A. Kucia %T On saturating ultrafilters on N %J Colloquium Mathematicum %D 1971 %P 23-27 %V 37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-37-1-23-27/ %R 10.4064/cm-37-1-23-27 %G en %F 10_4064_cm_37_1_23_27