@article{KernHeidlerZischank1998,
  author    = {Kern, Alexander and Heidler, F. and Zischank, W.},
  title     = {Induced overvoltages in cable ducts taking into account the current flow into earth / F. Heidler ; W. Zischank ... A. Kern ...},
  series = {Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom},
  journal   = {Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom},
  address   = {Birmingham},
  year      = {1998},
  language  = {en}
}
@article{KernBeierlZischank2009,
  author    = {Kern, Alexander and Beierl, O. and Zischank, W.},
  title     = {DIN EN 62 305-3 - Berechnung des Trennungsabstands (Anmerkungen zur Anwendung der Berechnungsverfahren und vereinfachte Verfahren zur Absch{\"a}tzung der Stromaufteilung) / Kern, A. ; Beierl, O. ; Zischank, W.},
  series = {Elektropraktiker. 63 (2009), H. 3},
  journal   = {Elektropraktiker. 63 (2009), H. 3},
  publisher = {HUSS-MEDIEN GmbH},
  address   = {Berlin},
  isbn      = {0013-5569},
  pages     = {218 -- 222},
  year      = {2009},
  language  = {de}
}