@article{Luhmann2011,
  author    = {Luhmann, Hans-Jochen},
  title     = {100 Prozent Strom aus erneuerbaren Quellen in Deutschland : Editorial},
  journal   = {Gaia},
  volume    = {20},
  number    = {4},
  pages     = {217},
  year      = {2011},
  language  = {de}
}