%0 Journal Article %A Stevo Todorčević %T A dichotomy for P-ideals of countable sets %J Fundamenta Mathematicae %D 2000 %P 251-267 %V 166 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-166-3-251-267/ %R 10.4064/fm-166-3-251-267 %G en %F 10_4064_fm_166_3_251_267