@article{MOMA_1967__71_177371,
     author = {Ch. Pommerenke and L. Danzer},
     title = {\"Uber die {Diskriminante} von {Mengen} gegebenen {Durchmessers.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {100--113},
     publisher = {mathdoc},
     volume = {71},
     year = {1967},
     zbl = {0158.31305},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1967__71_177371/}
}