1. V. E. Panin, Yu. V. Grinyaev, T. F. Elsukova, and A. G. Ivanchin, Russ. Phys. J., 25, No. 6, 479–497 (1983).
2. E. V. Kozlov, N. A. Popova, L. N. Ignatenko, et al., Russ. Phys. J., 34, No. 3, 267–281 (1991).
3. L. A. Teplyakova, T. S. Kunitsyna, and E. V. Kozlov, Russ. Phys. J., 41, No. 4, 341–345 (1998).
4. Yu. A. Abzaev, V. A. Starenchenko, and Yu. V. Solov’eva, J. Appl. Mech. Techn. Ph., 39, No. 1, 154–159 (1998).
5. L. A. Teplyakova, E. V. Kozlov, L. N. Ignatenko, et al., Vestn. Tambov Univ. Ser. Estestv. Tekhnich. Nauki [in Russian], 5, Issues 2–3, 221–223 (2000).