%0 Journal Article %A A. Kanamori %T Some combinatorics involving ultrafilters %J Fundamenta Mathematicae %D 1978 %P 145-155 %V 100 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-100-2-145-155/ %R 10.4064/fm-100-2-145-155 %G en %F 10_4064_fm_100_2_145_155