References
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- Treatise Oil Analytical Chemistry. edited by 1. M. Kolthoff and P. J. Elving . Interscienee Publishers. New York . Part 11. 8. p. 480 ( 1963 ).
- Binary Alloy Phase Diagram. I. I. Editor -in-ehief: Thaddeus B. Massalski , American Society for Metals . p. 153 . Metals Park . Ohio 4 4073 .