Cap. VI. Die Kegelschnitte.
Geometrie des Raumes Theil 2, GDML_Books, (1874), p. 109 / Harvested from
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@article{PPN587689498+DMDLOG_0012,
     title = {Cap. VI. Die Kegelschnitte.},
     booktitle = {Geometrie des Raumes Theil 2},
     series = {GDML\_Books},
     publisher = {Teubner},
     address = {Leipzig},
     year = {1874},
     pages = {109},
     url = {http://dml.mathdoc.fr/item/PPN587689498+DMDLOG_0012}
}

 (éd.). Cap. VI. Die Kegelschnitte., dans Geometrie des Raumes Theil 2, GDML_Books,  (1874), p. 109. http://gdmltest.u-ga.fr/item/PPN587689498+DMDLOG_0012/