1. BNL-325, 3rd edition, Vol. 1 (1973).
2. A. Kapustsik et al., Pribory i Tekh. Éksperim.,1, 43 (1968).
3. B. M.Aleksandrov et al., At. Énerg.,28, No. 4, 361 (1970).
4. D. Metta et al., J. Inorg. and Nucl. Chem.,27, 33 (1965).
5. M. Cabell, in: Proc. IAEA Symp. ?Nuclear Data for Reactors-1966,? Vol. 2, Paris, Oct. 17?21 (1966).