@article{BAG_1984__17_138271,
     author = {GERHARD GEISE and Peter Schreiber},
     title = {Ein {Peripheriewinkelsatz} f\"ur {Kardioiden} nebst {Anwendung} in der geometrischen {Fehlertheorie}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {175--180},
     publisher = {mathdoc},
     volume = {17},
     year = {1984},
     zbl = {0547.51017},
     url = {http://geodesic.mathdoc.fr/item/BAG_1984__17_138271/}
}