1. Rudnitskii, A.A.; Khotinskaya, A.N. (Russ. J. Inorg. Chem. 4 [1959] 1160/3).
2. Raub, E.; Falkenberg, G. (Z. Metallk. 55 [1964] 392/7).
3. Okamoto, H.; Massalski, T.B. (Bull. Alloy Phase Diagrams 5 [1984] 384/7).
4. Elliott, R.P. (Constitution of Binary Alloys, 1st Suppl., New York - Toronto- London 1965, pp. 1/877).
5. Peiner, E.; Kopitzki, K. (Nucl. Instrum. Methods Phys. Res. B34 [1988] 173/80).