@techreport{PehntPaarOtteretal.2009,
  author    = {Pehnt, Martin and Paar, Angelika and Otter, Philipp and Merten, Frank and Hanke, Thomas and Irrek, Wolfgang and Sch{\"u}wer, Dietmar and Supersberger, Nikolaus and Zeiss, Christoph},
  title     = {Energiebalance : optimale Systeml{\"o}sungen f{\"u}r erneuerbare Energien und Energieeffizienz ; [Ergebnisse des Projektes in Kurzfassung]},
  institution = {IFEU-Inst.},
  address   = {Heidelberg},
  pages     = {52},
  year      = {2009},
  language  = {de}
}