@incollection{ThomasIrrek2008,
  author    = {Thomas, Stefan and Irrek, Wolfgang},
  title     = {20 Prozent Endenergieeinsparung bis 2020 : wirtschaftlicher Grundstein f{\"u}r den Klimaschutz},
  booktitle = {Environmental and sustainability management : Energie und Klimaschutz ; Germany, Switzerland, Austria, Liechtenstein ; B.A.U.M. Jahrbuch 2008},
  publisher = {Breitengrad-Verl.},
  address   = {Hamburg},
  pages     = {24 -- 27},
  year      = {2008},
  language  = {de}
}