@article{MusallVoss2014, author = {Musall, Eike and Voss, Karsten}, title = {Renewable Energy Ratio in Net Zero Energy Buildings}, journal = {REHVA Journal}, volume = {51}, number = {3}, pages = {14 -- 18}, url = {https://www.rehva.eu/rehva-journal/chapter/renewable-energy-ratio-in-net-zero-energy-buildings}, year = {2014}, }