@article{ELMA_1983__38_141308,
     author = {Leonard Hering},
     title = {S\"atze vom {Holditch-Typ} f\"ur ebene {Kurven.}},
     journal = {Elemente der Mathematik},
     pages = {39--49},
     publisher = {mathdoc},
     volume = {38},
     year = {1983},
     zbl = {0468.53002},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1983__38_141308/}
}