%0 Journal Article %A S. S. Voloshchuk %T For nonlinear nonstationary theory of two-stream traveling-wave tube amplifier and two-stream amplifier: General equations and some results of calculation %J Izvestiya VUZ. Applied Nonlinear Dynamics %D 2016 %P 62-71 %V 24 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVP_2016_24_5_a3/ %G ru %F IVP_2016_24_5_a3