Бубнов, А. В., and А. Н. Четверик. “Improvement of Dynamics of Electric Drive With Phase Synchronization, Built on the Basis of Pulsed Frequency-Phase Discriminator With Extended Functional Possibiliti”. Omsk Scientific Bulletin, no. 4(160), Sept. 2018, pp. 38-42, doi:10.25206/1813-8225-2018-160-38-42.