%0 Journal Article %A C. Cox %T Three questions of Borsuk concerning movability and fundamental retraction %J Fundamenta Mathematicae %D 1973 %P 169-179 %V 80 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-80-2-169-179/ %R 10.4064/fm-80-2-169-179 %G en %F 10_4064_fm_80_2_169_179