1. V. M. Krekhtunov and V. A. Tyutin, Radiotekh. Elektron. (Moscow) 28, 209 (1983).
2. S. E. Bankov and A. V. Klement’eva, J. Radioelektron., No. 1, (2013). http://jre.cplire.ru/jre/jan13/19/text.html.
3. R. A. Silin and V. P. Sazonov, Slow-Wave Systems (Sovetskoe Radio, Moscow, 1966) [in Russian].
4. S. E. Bankov and T. I. Bugrova, Microwave Opt. Technol. Lett. 6, 782 (1993).
5. S. E. Bankov, G. G. Grachev, and M. D. Duplenkova, J. Commun. Technol. Electron. 57, 553 (2012).