Oliynyk, Olga, Yuri Taranenko, Alexander Shvachka, and Olena Chorna. 2017. “Development of auto­oscillating System of Vibration Frequency Sensors With Mechanical Resonator”. Eastern-European Journal of Enterprise Technologies 1 (2 (85):56-60. https://doi.org/10.15587/1729-4061.2017.93335.