%0 Journal Article %A S. Singh %T Generalized manifolds ANR's and AR's and null decompositions of manifolds %J Fundamenta Mathematicae %D 1983 %P 57-73 %V 115 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-115-1-57-73/ %R 10.4064/fm-115-1-57-73 %G en %F 10_4064_fm_115_1_57_73