1. Moore, R. L., USAEC Report AECD 3196(1949)
2. Gercke, R.H., USAEC Report UCRL 1493(1951)
3. Hardwick, W. H., Mills, A. L. and Stubbin, P., British Report AERE-CM-105(1951) (quoted in 57A)
4. Codding, J. W. et al, USAEC Report KAPL - 602(1951)
5. Chemical Technology Division, Oak Ridge National Laboratory, Annual Report, ORNL - 1141(1952)