%0 Journal Article %A Sibe Mardešić %A Jack Segal %T Equivalence of the Borsuk and the ANR-system approach to shapes %J Fundamenta Mathematicae %D 1971 %P 61-68 %V 72 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-72-1-61-68/ %R 10.4064/fm-72-1-61-68 %G en %F 10_4064_fm_72_1_61_68