[1]
Z. TRAWIŃSKI and D. J. CATHIGNOL, “Pseudorandom ultrasonic Doppler meter of liquid flow and profile with digital serial signal processing”, Arch. Acoust., vol. 15, no. 3-4, pp. 499–514, Dec. 1990, Accessed: Apr. 18, 2026. [Online]. Available: http://acoustics.ippt.gov.pl/index.php/aa/article/view/1303