TY  - JOUR
AU  - Ma, L.
TI  - On relations between homology and homotopy groups
JO  - Portugaliae mathematica
PY  - 1949
SP  - 107
EP  - 135
VL  - 8
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1949__8_3_114679/
LA  - en
ID  - PORMA_1949__8_3_114679
ER  -