%0 Journal Article %A Karol Borsuk %T An example of a simple arc in space whose projection in every plane has interior points %J Fundamenta Mathematicae %D 1947 %P 272 %V 34 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/FUNDAM_1947__34_1_213132/ %G en %F FUNDAM_1947__34_1_213132