1.
FILIPCZYƃSKI L. Detectability of blood vessels by means of the ultrasonic echo method using a focused ultrasonic beam. Arch. Acoust. [Internet]. 1982 Dec. 31 [cited 2026 Mar. 4];7(3-4):253-70. Available from: https://acoustics.ippt.gov.pl/index.php/aa/article/view/3286