%0 Journal Article %A Piotr Zakrzewski %T On nonmeasurable selectors of countable group actions %J Fundamenta Mathematicae %D 2009 %P 281-294 %V 202 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm202-3-5/ %R 10.4064/fm202-3-5 %G en %F 10_4064_fm202_3_5