Wang, Shifeng (April 2015). "Ecological impacts of wind farms on birds: Questions, hypotheses, and research needs". Renewable and Sustainable Energy Reviews. 44: 599–607. doi:10.1016/j.rser.2015.01.031.
Voigt, Christian (April 2015). "Wildlife and renewable energy: German politics cross migratory bats". European Journal of Wildlife Research. 61 (2): 213–219. doi:10.1007/s10344-015-0903-y. S2CID15232410.
Burger, Bruno (3 January 2024). Öffentliche Nettostromerzeugung in Deutschland im Jahr 2023 [Public Net Electricity Generation in Germany in 2023] (PDF) (in German). Freiburg, Germany: Fraunhofer-Institut für Solare Energiesysteme ISE. Retrieved 12 January 2024.
Voigt, Christian (April 2015). "Wildlife and renewable energy: German politics cross migratory bats". European Journal of Wildlife Research. 61 (2): 213–219. doi:10.1007/s10344-015-0903-y. S2CID15232410.
Hochstätter, Matthias; Paulsen, Thorsten; Grotz, Claudia (May 2006). "A clean issue -- Wind energy in germany"(PDF). BWE-Bundesverband Windenergie. p. 18. Archived from the original(PDF) on 2009-03-18. Retrieved 2007-06-21.
Hochstätter, Matthias; Paulsen, Thorsten; Grotz, Claudia (May 2006). "A clean issue -- Wind energy in germany"(PDF). BWE-Bundesverband Windenergie. p. 18. Archived from the original(PDF) on 2009-03-18. Retrieved 2007-06-21.