TY  - JOUR
AU  - Stefano Marchiafava
TI  - Characterization of Riemannian Manifolds with Weak Homology Group G2 (Following A. Gray).
JO  - Mathematische Zeitschrift
PY  - 1981
SP  - 157
EP  - 162
VL  - 178
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1981__178_173094/
ID  - MZ_1981__178_173094
ER  -