@article{ELMA_1979__34_141232,
     author = {W. Wunderlich},
     title = {Tip f\"ur das {Zeichnen} von {Ellipsen.}},
     journal = {Elemente der Mathematik},
     pages = {93--94},
     publisher = {mathdoc},
     volume = {34},
     year = {1979},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1979__34_141232/}
}