@article{1183407575, author = {Johnson, W. Woolsey}, title = {A case of non-euclidian geometry}, journal = {Bull. New York Math. Soc.}, volume = {2}, number = {4}, year = {1893}, pages = { 158-161}, language = {en}, url = {http://dml.mathdoc.fr/item/1183407575} }
Johnson, W. Woolsey. A case of non-euclidian geometry. Bull. New York Math. Soc., Tome 2 (1893) no. 4, pp. 158-161. http://gdmltest.u-ga.fr/item/1183407575/