1. R. Rengo, Nucl. Instrum. Methods Phys. Res. B 56/57, 933 (1991).
2. A. P. Klyucharev, L. I. Kovalenko, L. G. Lishenko, et al., Thin Foils of Metal Isotopes (Énergoizdat, Moscow, 1981).
3. A. V. Vasin, V. G. Vysotskii, and L. A. Matveeva, Pis’ma Zh. Tekh. Fiz. 24(15), 79 (1998) [Tech. Phys. Lett. 24, 616 (1998)].
4. F. F. Komarov, M. A. Kumakhov, and I. S. Tashlykov, Nondestructive Analysis of Solid Surfaces by Ion Beams (Minsk. Gos. Univ., Minsk, 1987).
5. Yu. G. Mashkarov, V. N. Sarana, and G. N. Kozeratskaya, in Proceedings of the 3rd All-Union Conference on Microanalysis Using Accelerated Particle Beams, Kharkov, 1992, p. 275.