@article{1183424158,
author = {Coolidge, J. L.},
title = {Non-Euclidean Geometry},
journal = {Bull. Amer. Math. Soc.},
volume = {24},
number = {3},
year = {1917},
pages = { 461-467},
language = {en},
url = {http://dml.mathdoc.fr/item/1183424158}
}
Coolidge, J. L. Non-Euclidean Geometry. Bull. Amer. Math. Soc., Tome 24 (1917) no. 3, pp. 461-467. http://gdmltest.u-ga.fr/item/1183424158/