@article{MOMA_1951__55_176858,
     author = {Fritz Hohenberg},
     title = {Eine reelle {Darstellung} der {Hyperkegelschnitte.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {146--152},
     publisher = {mathdoc},
     volume = {55},
     year = {1951},
     zbl = {0043.14703},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1951__55_176858/}
}