@techreport{HankeSchuelePietzner2007,
  author    = {Hanke, Thomas and Sch{\"u}le, Ralf and Pietzner, Katja},
  title     = {Aktivit{\"a}ten des Bundes, der L{\"a}nder und der Kommunen und Handlungsfelder zur Geb{\"a}udesanierung},
  series = {Climate change},
  volume    = {2007,18},
  institution = {Umweltbundesamt},
  address   = {Dessau-Ro{ß}lau},
  pages     = {50},
  year      = {2007},
  language  = {de}
}