@article{1029001423,
author = {D'Atri, J. E.},
title = {Geodesic spheres and symmetries in naturally reductive spaces.},
journal = {Michigan Math. J.},
volume = {21},
number = {3},
year = {1975},
pages = { 71-76},
language = {en},
url = {http://dml.mathdoc.fr/item/1029001423}
}
D'Atri, J. E. Geodesic spheres and symmetries in naturally reductive spaces.. Michigan Math. J., Tome 21 (1975) no. 3, pp. 71-76. http://gdmltest.u-ga.fr/item/1029001423/