@misc{EbingerSommer,
  author    = {Ebinger, Gerhard and Sommer, Thomas},
  title     = {Informations- und Kommunikationstechnologien in der Energiewirtschaft},
  subject      = {Information and communication technology},
  language  = {de}
}
@misc{FriedlKupzogSommeretal.,
  author    = {Friedl, Werner and Kupzog, Friederich and Sommer, Thomas and V{\"o}gel, Stefan},
  title     = {Anforderungen der Stromnetze an IKT},
  subject      = {Power Grid},
  language  = {de}
}