1. Adomeit, H. (2012). German–Russian Relations: Balance Sheet Since 2000 and Perspectives Until 2025. Note de CERFA (98).
2. AG Energiebilanzen. (2017a, December 22). Energieverbrauch steigt 2017 leicht an (Pressedienst Nr.5/2017). Retrieved January 15, 2018,
https://www.ag-energiebilanzen.de
3. AG Energiebilanzen. (2017b). Strommix. Stromerzeugung nach Energieträgern 1990–2017. Retrieved January 15, 2018,
https://www.ag-energiebilanzen.de
4. Andoura, S. (2013). Energy Solidarity in Europe: From Independence to Interdependence. Paris: Notre Europe/Jacques Delors Institute.
5. Andoura, S., Hancher L., & Van der Woude, M. (2010). Towards a European Energy Community: A Policy Proposal (Notre Europe Studies & Research 76). Paris: Notre Europe/Jacques Delors Institute.