1. A. D. MacDonald, Microwave Breakdoun in Gases (Wiley, New York, 1966).
2. K. V. Aleksandrov, L. P. Grachev, I. I. Esakov, V. V. Fedorov, and K. V. Khodataev, Tech. Phys. 51, 1448 (2006).
3. Yu. A. Lebedev, Plasma Sources Sci. Technol. 24, 053001 (2015).
4. A. S. Zarin, A. A. Kuzovnikov, and V. M. Shibkov, Freely Localized Microwave Discharge in Air (Neft’ i Gaz, Moscow, 1996) [in Russian].
5. N. N. Buravtsev, V. S. Konstantinov, Yu. A. Lebedev, and T. B. Mavlyudov, in Microwave Discharges: Fundamentals and Applications, Ed. by Yu.A. Lebedev (Yanus-K, Moscow, 2012), p. 167.