On the Features of Ambipolar Plasma Diffusion of a Spark Discharge Developing over the Surface of a Dielectric in a Vacuum. - Dolgov, A. N.; Klyachin, N. A.; Rodionov, A. A.; Gasratov, F. K.; Oginov, A. V.; Kurilenkov, Yu. K. (Technical Physics Letters, 2025)