@article{BNYMS_1893__2_186518,
     author = {Emory McClintock},
     title = {On the {Non-Euclidian} {Geometry.}},
     journal = {Bulletin of the New York Mathematical Society},
     pages = {21--33},
     publisher = {mathdoc},
     volume = {2},
     year = {1893},
     zbl = {24.0047.04},
     url = {http://geodesic.mathdoc.fr/item/BNYMS_1893__2_186518/}
}