1. R. M. WAGNER, USAEC Report AECU-4052, 1958.
2. J. C. SHEPPARD, USAEC Report No. HW-83226, July 1964.
3. G. RUDSTAM, Atompraxis, 6 (1960) 124.
4. G. R. HOWELLS, T. G. HUGHES, K. SADDINGTON, Progress in Nuclear Energy, Series III, Vol. 3, The Chemical Processing of Irradiated Fuels from Thermal Reactors, Pergamon Press, 1961, p. 151.
5. T. S. LAXMINARAYAN, S. K. PATIL, H. D. SHARMA, J. Inorg. Nucl. Chem., 26 (1964) 1301.