@article{GDZPPN002069199,
title = {Rank and symmetry of Riemannian manifolds.},
journal = {Commentarii mathematici Helvetici},
volume = {69},
year = {1994},
pages = {483-500},
zbl = {0822.53032},
url = {http://dml.mathdoc.fr/item/GDZPPN002069199}
}
Eschenburg, J.-H.; Olmos, C. Rank and symmetry of Riemannian manifolds.. Commentarii mathematici Helvetici, Tome 69 (1994) pp. 483-500. http://gdmltest.u-ga.fr/item/GDZPPN002069199/