1. Historic prices dating from 1855 to 1900 are displayed in Reichsmark at the Deutsches Museum, Munich, Germany.
2. http://Aluminiumlithium.com/ (Accessed September 2017).
3. https://media.ford.com/content/fordmedia/fna/us/en/news/2015/09/14/ford-alcoa-collaborate.html (Accessed September 2017).
4. http://aluminiuminsider.com/alcoas-micromill-technology-for-future-cars/ (Accessed September 2017).
5. Aluminium Statistical Review;Olsen,2016