1. B. S. Ellefson and N. W. Taylor: Journal Amer. Ceramic Soc. (1938) 21, pp. 193–205.
2. G. Becker, H. F. Harders, and H. Kornfeld: Arch. Eisenhuttenw. (1949) 20, p. 363.
3. F. Bashforth and J. C. Adams: An Attempt to Test Theories of Capillarity. (1883) Cambridge University Press.
4. Metals Handbook (1948) p. 903. Cleveland. ASM.
5. C. M. Hsiao and A. W. Schlechten: Trans. AIME (1952) 194, p. 65; Journal of Metals (January 1952).