@article{MAN_1888__32_157381,
     author = {K\"upper},
     title = {Die {Abz\"ahlung} als {Fehlerquelle} in der modernen {Geometrie}},
     journal = {Mathematische Annalen},
     pages = {282--289},
     publisher = {mathdoc},
     volume = {32},
     year = {1888},
     zbl = {20.0676.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1888__32_157381/}
}