@article{MZ_1926__24_175005,
     author = {W. Blaschke},
     title = {\"Uber die {Geometrie} von {Laguerre.} {V.} {Kugelsysteme} {Ribaucours} .},
     journal = {Mathematische Zeitschrift},
     pages = {622--639},
     publisher = {mathdoc},
     volume = {24},
     year = {1926},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1926__24_175005/}
}