%0 Journal Article %A N. M. Ryskin %A A. G. Rozhnev %A D. Minenna %A Y. Elskens %A F. Andre %T Nonstationary discrete theory of excitation of periodic structures and its application for simulation of traveling-wave tubes %J Izvestiya VUZ. Applied Nonlinear Dynamics %D 2021 %P 10-34 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVP_2021_29_1_a1/ %G ru %F IVP_2021_29_1_a1