@article{MZ_1958__70_169775,
     author = {Friedrich Kasch},
     title = {\"Uber eine metrische {Eigenschaft} der {S-Zahlen.}},
     journal = {Mathematische Zeitschrift},
     pages = {263--270},
     publisher = {mathdoc},
     volume = {70},
     year = {1958},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1958__70_169775/}
}