@techreport{BarthelBunseIrreketal.2006, author = {Barthel, Claus and Bunse, Maike and Irrek, Wolfgang and Thomas, Stefan}, title = {Options and potentials for energy end-use efficiency and energy services : summary ; final report}, institution = {Wuppertal Institute for Climate, Environment and Energy}, address = {Wuppertal}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:wup4-opus-50158}, pages = {27}, year = {2006}, language = {en} }