@article{MAN_1960__141_160809,
     author = {B. Volkmann},
     title = {Eine metrische {Eigenschaft} reeller {Zahlk\"orper.}},
     journal = {Mathematische Annalen},
     pages = {237--238},
     publisher = {mathdoc},
     volume = {141},
     year = {1960},
     zbl = {0115.27202},
     url = {http://geodesic.mathdoc.fr/item/MAN_1960__141_160809/}
}