@article{ELMA_1966__21_140818,
     author = {J. Hoschek},
     title = {\"Uber {Kegelschnitte} mit gemeinsamem {Kr\"ummungselement.}},
     journal = {Elemente der Mathematik},
     pages = {7--10},
     publisher = {mathdoc},
     volume = {21},
     year = {1966},
     zbl = {0135.21602},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1966__21_140818/}
}