1. Gerlach, J., Hennig, U., and Kern, K., Metal. Trans., 1975, vol. 6B, no. 3, pp. 83–86.
2. Gerlach, J., Hennig, U., and Pötsch, H., Erzmetall, 1978, Bd. 31, pp. 496–504.
3. Gerlach, J. and Winkhaus, G., Light Metals, 1985, pp. 301–313.
4. Maeda, H., Matsui, S., and Era, A., Light Metals, 1985, pp. 763–780.
5. Townsed, D.W. and Boxal, L.G., Light Metals, 1984, pp. 649–665.