Batrakov, K., and S. Sytova. “Nonstationary Stage of quasi‐cherenkov Beam Instability in Periodical Structures”. Mathematical Modelling and Analysis 10, no. 1 (March 31, 2005): 1-8. Accessed September 20, 2024. https://btp.vgtu.lt/index.php/MMA/article/view/9654.