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@article{CM_1982__47_3_237_0, author = {Innami, Nobuhiro}, title = {Splitting theorems of riemannian manifolds}, journal = {Compositio Mathematica}, pages = {237--247}, publisher = {Martinus Nijhoff Publishers}, volume = {47}, number = {3}, year = {1982}, mrnumber = {681608}, zbl = {0514.53040}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1982__47_3_237_0/} }
Innami, Nobuhiro. Splitting theorems of riemannian manifolds. Compositio Mathematica, Tome 47 (1982) no. 3, pp. 237-247. http://geodesic.mathdoc.fr/item/CM_1982__47_3_237_0/