Kovtun, Yu. V., A. N. Ozerov, E. I. Skibenko, and V. B. Yuferov. “Effect of Penning Ionization on the Balance of Charged Particles in Plasma of a Stationary Reflex Discharge”. Ukrainian Journal of Physics 61, no. 8 (January 5, 2019): 702. Accessed June 23, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019048.