@article{BerloSeifried2008,
  author    = {Berlo, Kurt and Seifried, Dieter},
  title     = {B{\"u}rger-Contracting : Photovoltaik und Effizienzma{ß}nahmen im Doppelpack},
  journal   = {Solarzeitalter},
  volume    = {20},
  number    = {4},
  pages     = {48 -- 52},
  year      = {2008},
  language  = {de}
}