@article{PFMT_2012_1_a10,
     author = {I. N. Tsyrelchuk and D. N. Mikhailovsky and V. B. Bulycheva},
     title = {Irregular travelling wave tubes optimization based on bundle and velocity dispersion in electron beam},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {59--63},
     publisher = {mathdoc},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2012_1_a10/}
}