1. Aluminum : Properties and Physical Metallurgy, J.E. Hatch, ed., ASM INTERNATIONAL, Metals Park, OH, 1984, pp. 25–57
2. Y.A. Bagaryatskii: Dokl. Akad. Nauk SSSR, 1952, vol. 87, pp. 397–400
3. Y.A. Bagaryatskii: Dokl. Akad. Nauk SSSR, 1952, vol. 87, pp. 559–61
4. J.M. Silcock: J. Inst. Met., 1960–61, vol. 89, pp. 203–10
5. H. Perlitz, A. Westgren: Arkiv Kemi Mineral. Geol., 1943, vol. 16B (13), pp. 990–94