Svilainis L, Chaziachmetovas A, Gomez Alvarez-Arenas TE. Ultrasonic Air Coupled Transducer Output Impedance Measurement Technique. ELEKTRON ELEKTROTECH [Internet]. 2019 Feb. 11 [cited 2026 Jan. 22];25(1):18-25. Available from: https://eejournal.ktu.lt/index.php/elt/article/view/22731