@article{1183423206, author = {Coolidge, J. L.}, title = {Non-Euclidean Geometry}, journal = {Bull. Amer. Math. Soc.}, volume = {22}, number = {3}, year = {1915}, pages = { 398-409}, language = {en}, url = {http://dml.mathdoc.fr/item/1183423206} }
Coolidge, J. L. Non-Euclidean Geometry. Bull. Amer. Math. Soc., Tome 22 (1915) no. 3, pp. 398-409. http://gdmltest.u-ga.fr/item/1183423206/