1. AGEB. (2015). Energieflussbild der Bundesrepublik Deutschland 2013. Energieeinheit Petajoule (PJ). Berlin und Köln.
2. AGEB. (2017). Bruttostromerzeugung in Deutschland ab 1990 nach Energieträgern. Berlin und Köln. Retrieved October 27, 2017, from http://www.ag-energiebilanzen.de /.
3. Allcott, H., & Greenstone, M. (2012). Is there an energy efficiency gap? Journal of Economic Perpsectives, 26(1), 3–28.
4. Amecke, H., Deason, J., Hobbs, A., Novikova, A., Xiu, Y., & Shengyuan, Z. (2013). Buildings energy efficiency in China, Germany, and the United States. Climate Policity Initiative Report.
5. Ameli, N., & Brandt, N. (2015). Determinants of households’ investment in energy efficiency and renewables: evidence from the OECD survey on household environmental behaviour and attitudes. Environmental Research Letters, 10(4).