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@article{BNYMS_1893__3_186524, author = {George Bruce Halsted}, title = {Lambert's {Non-Euclidean} {Geometry.}}, journal = {Bulletin of the New York Mathematical Society}, pages = {79--80}, publisher = {mathdoc}, volume = {3}, year = {1893}, zbl = {25.0079.01}, url = {http://geodesic.mathdoc.fr/item/BNYMS_1893__3_186524/} }
George Bruce Halsted. Lambert's Non-Euclidean Geometry.. Bulletin of the New York Mathematical Society, Tome 3 (1893), pp. 79-80. http://geodesic.mathdoc.fr/item/BNYMS_1893__3_186524/