@article{JRAM_1964__213_150587,
     author = {Bodo Volkmann},
     title = {Zur metrischen {Theorie} der {S-Zahlen.} {II.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {58--65},
     year = {1964},
     volume = {213},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1964__213_150587/}
}