%0 Journal Article %A B. Kirchheim %A Tomasz Natkaniec %T Exceptional directions for SierpiƄski's nonmeasurable sets %J Fundamenta Mathematicae %D 1991 %P 237-245 %V 140 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-140-3-237-245/ %R 10.4064/fm-140-3-237-245 %G en %F 10_4064_fm_140_3_237_245