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Kovtun, Y. V., Ozerov, A. N., Skibenko, E. I., & Yuferov, V. B. (2019). Effect of Penning Ionization on the Balance of Charged Particles in Plasma of a Stationary Reflex Discharge. Ukrainian Journal of Physics, 61(8), 702. https://doi.org/10.15407/ujpe61.08.0702