1. “Aluminum Standards and Data (1989).” The Aluminum Association, Inc., Washington, D.C.
2. In “Aluminum: Profile of the Industry”;Berk,1982
3. Understanding the Hall–Héroult Process for Production of Aluminium;Grjotheim,1986
4. Aluminum Electrolysis: Fundamentals of the Hall–Héroult Process;Grjotheim,1982