%0 Journal Article %A Saharon Shelah %T The combinatorics of reasonable ultrafilters %J Fundamenta Mathematicae %D 2006 %P 1-23 %V 192 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm192-1-1/ %R 10.4064/fm192-1-1 %G en %F 10_4064_fm192_1_1