POWAŁOWSKI, Tadeusz. “Ultrasonic System for Noninvasive Measurement of Hemodynamic Parameters of Human Arterial-Vascular System”. Archives of Acoustics 13, no. 1-2 (July 10, 2015): 89–108. Accessed January 17, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/3063.