G. ŁYPACEWICZ and E. DURIASZ, “Design of ultrasonic probes for medical diagnostics”, Arch. Acoust., vol. 15, no. 3-4, pp. 375–397, May 2014, Accessed: Jan. 18, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/1296