Anisimov, I., and S. Soroka. “Formation of a Density Jump in the Inhomogeneous Isothermal Plasma Interacting With Modulated Electron Beam”. Ukrainian Journal of Physics 58, no. 1 (October 5, 2018): 26. Accessed June 26, 2019. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018266.