V. F. Kravchenko, A. A. Kuraev, Academician V. I. Pustovoit, and A. K. Sinitsyn

Nonlinear Theory of Relativistic Cherenkov Generators
Based on Irregular Waveguides with Allowance
for Finite Wall Conductance

Doklady Physics, 2007, Vol. 52, No. 2, pp. 96–100.