Shostakivskyi І. І., and Shostakivskyi І. І. “Dielectrometry of Lubricating Oils in an Alternating Electric Field”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas, no. 1(52), June 2022, pp. 24-33, doi:10.31471/1993-9965-2022-1(52)-24-33.