@article{1183425307, author = {Alexander, James W.}, title = {Note on Riemann spaces}, journal = {Bull. Amer. Math. Soc.}, volume = {27}, number = {3}, year = {1920}, pages = { 370-372}, language = {en}, url = {http://dml.mathdoc.fr/item/1183425307} }
Alexander, James W. Note on Riemann spaces. Bull. Amer. Math. Soc., Tome 27 (1920) no. 3, pp. 370-372. http://gdmltest.u-ga.fr/item/1183425307/