@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/