Lugovskyi O, Movchanyuk A, Fesich V. To the question about the calculation of the ultrasonic step-up transformer of vibrating speed with the developed radiance surface. Mech. Adv. Technol. [Internet]. 2019Apr.14 [cited 2024May3];(1(85):49-56. Available from: https://journal.mmi.kpi.ua/article/view/164346