1. E. A. Muratov, A. T. Rakhimov, and N. V. Suetin, RF Patent No. 2155416 (2002);
2. US Patent No. 6005343 (1999).
3. P. A. Bokhan and A. R. Sorokin, Zh. Tekh. Fiz. 55, 88 (1985) [Sov. Phys. Tech. Phys. 30, 50 (1985)].
4. A. S. Kovalev, Yu. A. Mankelevich, E. A. Muratov, et al., J. Vac. Sci. Technol. A 10, 1086 (1992).
5. V. M. Butenin, Lasers on Self-Constrained Transitions in Metal Atoms (RFFI, Moscow, 1998), Chap. 9, pp. 510–540 [in Russian].