@article{1178241290,
author = {Obata, Morio},
title = {A non-compact Riemannian manifold admitting a transitive group of conformorphisms},
journal = {Tohoku Math. J. (2)},
volume = {25},
number = {4},
year = {1973},
pages = { 553-556},
language = {en},
url = {http://dml.mathdoc.fr/item/1178241290}
}
Obata, Morio. A non-compact Riemannian manifold admitting a transitive group of conformorphisms. Tohoku Math. J. (2), Tome 25 (1973) no. 4, pp. 553-556. http://gdmltest.u-ga.fr/item/1178241290/