@article{MAN_1873__6_156629,
     author = {Affolter},
     title = {Construction des regul\"aren {Sieben-} und {Dreizehn-Ecks}},
     journal = {Mathematische Annalen},
     pages = {592--596},
     publisher = {mathdoc},
     volume = {6},
     year = {1873},
     url = {http://geodesic.mathdoc.fr/item/MAN_1873__6_156629/}
}