1. M. Sørlie and H.A. Øye:Cathodes in Aluminium Electrolysis, Aluminium-Verlag GmbH, Düsseldorf, 1989.
2. H.P. Klug and L.E. Alexander:X-ray Diffraction Procedures, 2nd ed., Wiley, New York, NY, 1974, pp. 545–49.
3. K. Grjotheim, C. Krohn, M. Malinovsky, K. Matiasovsky, and J. Thonstad:Aluminium Electrolysis, 2nd ed., Aluminium-Verlag, Düsseldorf, I982.
4. W. Rüdorff and E. Schulze:Z. Anorg. Chem., 1954, vol. 277, pp. 156–71.
5. R.C. Ascher:J. Inorg. Nucl. Chem., 1959, vol. 10, pp. 238–49.