Zamikhovskyі Leonid, Olena Zamikhovska, and Volodymyr Pavlyk. 2021. “Research of the Characteristics of Acoustic Processes Using Wavelet Transformation for Detecting a Diagnostic Sign of the Technical State of Gas Pumping Units”. Technology Audit and Production Reserves 1 (2(57):32-36. https://doi.org/10.15587/2706-5448.2021.224432.