Perchevska, L., O. Drozdenko, and K. Drozdenko. “Shifting the Operating Frequency of the Piezoceramic Electroacoustic Transducer Langevin Type Using Passive Cooling Methods”. ScienceRise, no. 4, Aug. 2021, pp. 3-10, doi:10.21303/2313-8416.2021.002019.