Electronic Tunability and Cancellation of Serial Losses in Wire Coils. - Roman Sotner; Jan Jerabek; Ladislav Polak; Radek Theumer; Lukas Langhammer (Sensors, 2022)

Various-Order Low-Pass Filter with the Electronic Change of Its Approximation. - Lukas Langhammer; Roman Sotner; Radek Theumer (Sensors, 2023)

Special Transfer Section for Selective Rejecting and Amplification of Bands in Equalization. - Roman Sotner; Marek Svoboda; Dmitrii Semenov; Ladislav Polak; Jan Jerabek; Radek Theumer; Winai Jaikla (IEEE Trans. Circuits Syst. I Regul. Pap., 2024)