Thielges, Sonja IASS Institute for Advanced Sustainability Studies Potsdam;
https://www.aicgs.org/publication/u-s-and-german-energy-policy-at-a-crossroads-the-transatlantic-partners-and-the-future-of-energy-cooperation/ (Supplementary material)
Thielges, S. (2019): U.S. and German Energy Policy at a Crossroads? The Transatlantic Partners and the Future of Energy Cooperation. - aicgs.org - American Institute for Contemporary German Studies (AICGS), 12.07.2019.