1. Metals Handbook, Vol 1, 8th ed, Metals Park, Ohio: American Society for Metals, 1966, pp 1188-1189.
2. Hansen, M.: Constitution of Binary Alloys, New York: McGraw-Hill, Inc., 1958, pp 596, 601, 938.
3. Elliot, R.P. : Constitution of Binary Alloys, New York: McGraw-Hill, Inc., 1965 , pp 376, 378, 605.
4. Houghton, J.L., and Prince, A.: The Constitutional Diagrams of Alloys: A Bibliography, London: Institute of Metals, 1954 , pp 291-292.