Zamikhovskyі L., O. Zamikhovska, and V. Pavlyk. “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, vol. 1, no. 2(57), Feb. 2021, pp. 32-36, doi:10.15587/2706-5448.2021.224432.