1. Microwave Transmission Circuits, Ed. by G. L. Ragan (McGraw Hill, New York, 1948; Sovetskoe Radio, Moscow, 1951).
2. B. V. Zverev and N. P. Sobenin, Electrodynamic Characteristic of Accelerating Resonators (Energoatomizdat, Moscow, 1993) [in Russian].
3. I. V. Lebedev, Microwave Technology and Devices (Vysshaya Shkola, Moscow, 1970), Vol. 1 [in Russian].
4. V. V. Vladimirskii, Zh. Tekh. Fiz. 17, 1947 (1947).
5. J. L. Altman, Microwave Circuits (D. Van Nostrand, New York, 1964; Mir, Moscow, 1969).