TY - JOUR AU - S. Singh TI - Generalized manifolds ANR's and AR's and null decompositions of manifolds JO - Fundamenta Mathematicae PY - 1983 SP - 57 EP - 73 VL - 115 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-115-1-57-73/ DO - 10.4064/fm-115-1-57-73 LA - en ID - 10_4064_fm_115_1_57_73 ER -