@article{MAN_1893__43_157672,
     author = {Felix Klein},
     title = {Vergleichende {Betrachtungen} \"uber neuere geometrische {Forschungen}},
     journal = {Mathematische Annalen},
     pages = {63--100},
     publisher = {mathdoc},
     volume = {43},
     year = {1893},
     zbl = {25.0871.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1893__43_157672/}
}