%0 Journal Article
%A Selker, Kevin
%T Ideal independence, free sequences, and the ultrafilter number
%J Commentationes Mathematicae Universitatis Carolinae
%D 2015
%P 117-124
%V 56
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.015.110/
%R 10.14712/1213-7243.015.110
%G en
%F 10_14712_1213_7243_015_110