двухлучевая ЛБВ ABOUT PERIODIC INTERACTION OF TWO ELECTRON STREAMS BETWEEN THEMSELVES AND WITH FIELDS OF ELECTRODYNAMICS SYSTEMS In this paper, brief review of new and early publications devoted to the interaction of electron streams and the enhancement due to the interference of partial waves in streams, and due to instability is adduced. Read more about ABOUT PERIODIC INTERACTION OF TWO ELECTRON STREAMS BETWEEN THEMSELVES AND WITH FIELDS OF ELECTRODYNAMICS SYSTEMS