1. N. P. Agapova et al., in: Problems of Atomic Science and Technology, Series on Fuel and Construction Materials [in Russian], Part 1, Izd. Tsent. Nauchn.-Issled. Inst. Atom. Inf., Moscow (1974), p. 14.
2. G. Kulcinsky et al., UWFDM-108, Madison, Wisconsin (1974).
3. G. Kulcinsky et al., UWFDM-127, Madison, Wisconsin (1975).
4. V. M. Gusev et al., Preprint Inst. Atom. Energ. 25445, Moscow (1975).
5. N. P. Agapova et al., Fourth Geneva Conference, Report No. 49/P/453 (1971).