1. International Energy Agency (IEA), Technology Roadmap: Hydropower, 2012.
2. Academic landscape of hydropower: citation-analysis-based method and its application;Sasaki;Int J Energy Technol Policy,2016
3. Swiss Federal Office of Energy (SFOE), Swiss electricity statistics 2015, Bern, 2015.
4. Swiss Federal Office of Energy (SFOE), “Hydropower,” 2016. [Online]. Available: http://www.bfe.admin.ch/themen/00490/00491/index.html?lang=en. [Accessed: 18-Oct-2016].
5. Energy situation and policy in Switzerland;Zimmermann;Int J Ambient Energy,2001