@article{IVP_2021_29_1_a1,
     author = {N. M. Ryskin and A. G. Rozhnev and D. Minenna and Y. Elskens and F. Andre},
     title = {Nonstationary discrete theory of excitation of periodic structures and its application for simulation of traveling-wave tubes},
     journal = {Izvestiya VUZ. Applied Nonlinear Dynamics},
     pages = {10--34},
     year = {2021},
     volume = {29},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVP_2021_29_1_a1/}
}