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@article{BNYMS_1893__2_186514, author = {Felix Klein}, title = {A {Comparative} {Review} of {Recent} {Researches} in {Geometry.}}, journal = {Bulletin of the New York Mathematical Society}, pages = {215--249}, publisher = {mathdoc}, volume = {2}, year = {1893}, zbl = {25.0871.02}, url = {http://geodesic.mathdoc.fr/item/BNYMS_1893__2_186514/} }
Felix Klein. A Comparative Review of Recent Researches in Geometry.. Bulletin of the New York Mathematical Society, Tome 2 (1893), pp. 215-249. http://geodesic.mathdoc.fr/item/BNYMS_1893__2_186514/