%0 Journal Article %A Sibe Mardešić %A Jack Segal %T Shapes of compacta and ANR-systems %J Fundamenta Mathematicae %D 1971 %P 41-59 %V 72 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-72-1-41-59/ %R 10.4064/fm-72-1-41-59 %G en %F 10_4064_fm_72_1_41_59