1. Radtsig, A.A. and Smirnov, B.M., in Khimiya plazmy. Sbornik nauchnykh statei (Chemistry of Plasma: Collection of Scientific Papers), Moscow: Energoatomizdat, 1984, no. 11, p. 170.
2. Salym, Ya.I., in Khimiya plazmy. Sbornik nauchnykh statei (Chemistry of Plasma: Collection of Scientific Papers), Moscow: Energoatomizdat, 1993, no. 17, p. 194.
3. Frost, L.S., Phys. Rev., 1957, vol. 105, p. 354.
4. Raizer, Y.P., Gas Discharge Physics, Berlin: Springer, 2011.
5. Riemann, K.U., J. Phys. D: Appl. Phys., 1991, vol. 24, p. 493.