@article{10_4064_fm_140_3_237_245, author = {B. Kirchheim and Tomasz Natkaniec}, title = {Exceptional directions for {Sierpi\'nski's} nonmeasurable sets}, journal = {Fundamenta Mathematicae}, pages = {237--245}, publisher = {mathdoc}, volume = {140}, number = {3}, year = {1991}, doi = {10.4064/fm-140-3-237-245}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-140-3-237-245/} }