@article{GDZPPN002058154,
title = {On Locally Symmetric Spaces of Non-negative Curvature and certain other Locally Homogeneous Spaces.},
journal = {Commentarii mathematici Helvetici},
volume = {37},
year = {1962},
pages = {266-295},
zbl = {0113.37101},
url = {http://dml.mathdoc.fr/item/GDZPPN002058154}
}
Wolf, Joseph A. On Locally Symmetric Spaces of Non-negative Curvature and certain other Locally Homogeneous Spaces.. Commentarii mathematici Helvetici, Tome 37 (1962) pp. 266-295. http://gdmltest.u-ga.fr/item/GDZPPN002058154/