
@Article{Neumann1875,
  author =       "C. Neumann",
  title =        "Ueber die {Anzahl} der elektrischen {Materien}.",
  journal =      "Pogg. Ann.",
  year =         "1875",
  volume =       "159",
  pages =        "301--312",
  ISSN =         "0003-3804",
  fjournal =     "Annalen der Physik und Chemie",
  jfm =          "08.0679.01",
  language =     "German",
  zbmath =       "2714762",
}