1. L. Curtiss, Introduction to Neutron Physics [Russian translation], Atomizdat, Moscow (1965).
2. R. D. Vasil'ev et al., At. Energ.,15, 200 (1963).
3. I. V. Gordeev, D. A. Kardashev, and A. V. Malyshev, Nuclear Physics Constants [in Russian], Atomizdat, Moscow (1963).
4. Nuclear Physics Handbook [in Russian], Fizmatgiz, Moscow (1963).
5. N. N. Shumilovskii, L. V. Mel'ttser, and A. A. Kolmakov, Radioisotopic Methods for Automatic Monitoring of Complex Ore Composition [in Russian], Energiya, Moscow (1964).