1. A history of switching-mode Class-E techniques;Grebennikov;IEEE Microwave Mag,2018
2. Switching-mode operation of high-frequency generators (in Russian);Artym;Radiotekhnika,1969
3. Switching-mode operation of high-frequency generators;Artym;Telecommun Radio Eng Part 2,1969
4. Switching-Mode Generators (in Russian);Artym,1969
5. Marginal efficiency of generator of harmonic signals (in Russian);Artym;Izvestiya vuzov SSSR: Radioelektronika,1970