@article{1256054993, author = {Thorpe, John A.}, title = {On the curvatures of Riemannian manifolds}, journal = {Illinois J. Math.}, volume = {10}, number = {4}, year = {1966}, pages = { 412-417}, language = {en}, url = {http://dml.mathdoc.fr/item/1256054993} }
Thorpe, John A. On the curvatures of Riemannian manifolds. Illinois J. Math., Tome 10 (1966) no. 4, pp. 412-417. http://gdmltest.u-ga.fr/item/1256054993/