1. Heuss, R.; Müller, N.; van Sintern, W.; Starke, A.; Tschiesner, A.: Lightweight, heavy impact – How carbon fiber and other lightweight materials will develop across industries and specifically in automotive, McKinsey & Company, 2012
2. fka Forschungsgesellschaft Kraftfahrwesen mbH Aachen: Future Trends in Steel 2030+, WorldAutoSteel, 2017
3. International Energy Agency, Scenarios under
https://www.iea.org/weo2018/scenarios
. Accessed 12 December 2018