1. E. Kh. Baksht, O. M. Blinova, M. V. Erofeev, V. I. Karelin, V. S. Ripenko, V. F. Tarasenko, A. A. Trenkin, Yu. M. Shibitov, and M. A. Shulepov, Plasma Phys. Rep. 42, 876 (2016).
2. S. N. Buranov, V. V. Gorokhov, V. I. Karelin, A. I. Pavlovskii, and P. B. Repin, Quantum Electron. 18, 891 (1991).
3. S. N. Buranov and V. V. Gorokhov, V. I. Karelin, and P. B. Repin, in Studies in Plasma Physics, Ed. by V. D. Selemir and A. E. Dubinov (Vseross. Nauchno-Issled. Inst. Eksp. Fiz., Sarov, 1998), p. 39.
4. A. V. Perminov and A. A. Tren’kin, Tech. Phys. 50, 1158 (2005).
5. V. I. Karelin and A. A. Tren’kin, Tech. Phys. 53, 314 (2008).