@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://www.numdam.org/item/CM_1982__47_3_237_0/}
}