[1]
L. FILIPCZYŃSKI and J. SAŁKOWSKI, “Attempts at the ultrasonic visualization of the heart in real time”, Arch. Acoust., vol. 2, no. 3, pp. 225–230, Mar. 2016, Accessed: Feb. 04, 2026. [Online]. Available: https://acoustics.ippt.pan.pl/index.php/aa/article/view/3486