1. L.C. Edwards, K.J. Neyrey, and L.P. Lossius: Light Metals, 2007, pp. 895–900.
2. E.E. Hardin, C.L. Beilharz, and L.L. Melvin: Light Metals, 1993, pp. 501–8.
3. E.E. Hardin, P.J. Ellis, C.L. Beilharz, and L. McCoy: Light Metals, 1994, pp. 571–81.
4. F. Vogt, R. Tonti, M. Hunt, and L. Edwards: Light Metals, 2004, pp. 489–93.
5. L. Edwards, N. Backhouse, H. Darmstadt, and M.J. Dion: Light Metals, 2012, pp. 1207–12.