1. E. Ya. Zandberg and N. I. Ionov, Surface Ionization (Nauka, Moscow, 1969).
2. E. Ya. Zandberg and U. Kh. Rasulev, Usp. Khim. 51, 1425 (1982).
3. U. Kh. Rasulev and E. Ya. Zandberg, Prog. Surf. Sci. 28, 181 (1988).
4. E. A. Zandberg, U. Kh. Rasulev, and Sh. M. Khalikov, Sov. Phys. Tech. Phys. 21, 483 (1976).
5. E. Ya. Zandberg, U. Kh. Rasulev, and E. G. Nazarov, Sov. Phys. Tech. Phys. 26, 706 (1981).