@incollection{MusallVoss2011, author = {Musall, Eike and Voss, Karsten}, title = {Plusenergiesiedlung: Freiburg, D 2006}, booktitle = {Nullenergiegeb{\"a}ude}, editor = {Karsten Voss and Eike Musall}, isbn = {978-3-920034-50-8}, url = {https://www.degruyter.com/viewbooktoc/product/205283}, year = {2011}, }