TY - CONF A1 - Musall, Eike T1 - Understanding Net ZEB - Overview of existing definitions in EU/Europe T2 - Towards Net Zero Energy Buildings Conference, Kopenhagen Y1 - 2012 UR - https://opus4.kobv.de/opus4-hs-duesseldorf/frontdoor/index/index/docId/2028 CY - Kopenhagen ER -