1. Analog to digital signal power ratio in simulcast DRM transmission;varlamov;T-COMM,2016
2. Frequency extension circuit for EER transmitters operating with electrically short antennas
3. Addition of the power outputs from push-pull voltage-switching oscillators having a resistive load;varlamov;Radioelectronics and Communications Systems (English translation of Izvestiya Vysshikh Uchebnykh Zavedenii Radioelektronika),1989
4. High-power HF digital-analog converter for SSB signal power amplifiers;varlamov;Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika),1989
5. Rec. ITU-R P.1321–5 (07/2015);Propagation Factors Affecting Systems Using Digital Modulation Techniques at LF and MF,2015