1. R. A. Kuznetsov, Activation Analysis [in Russian], Atomizdat, Moscow (1974), p. 126.
2. A. L. Yakubovich, E. I. Zaitsev, and S. M. Przhiyalgovskii, Nuclear-Physical Methods of Analysis of Minerals [in Russian], Énergoizdat, Moscow (1982), pp.102?106.
3. A. K. Berzin, Yu. A. Gruzdev, and V. V. Sulin, in: Nuclear Physical Methods of Analysis of Matter [in Russian], Atomizdat, Moscow (1971), pp. 236?244.
4. O. Abbosov, S. Kodiri, and L. P. Starchik, in: ibid., pp. 244?255.
5. Yu. N. Burmistenko,E. N. Gordeeva, and Yu. V. Feoktistov, in: Radiation Techniques [in Russian], No. 11, Atomizdat, Moscow (1975), pp.225?235.