1. 1) C. R. Breden et al.: ANL-4519, (1951);
2. C. R. Breden et al.: ANL-5354, (1954).
3. 2) D. J. DePaul: TID-7006, Corrosion and Wear Handbook, (1957).
4. 3) D. J. DePaul: Corrosion, 13 (1957), 91.
5. 4) W. L. Boyd and H. A. Pray: Corrosion, 13 (1957), 375.