@article{JRAM_1964__0214_0215_150636,
     author = {Otto Haupt},
     title = {Verallgemeinerung eines {Satzes} \"uber {Konvexbogen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {419--431},
     publisher = {mathdoc},
     volume = {0214_0215},
     year = {1964},
     zbl = {0139.15802},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1964__0214_0215_150636/}
}