1.
OPIELIƃSKI KJ, GUDRA T, PRUCHNICKI P. A digitally controlled model of an active ultrasonic transducer matrix for projection imaging of biological media. Arch. Acoust. 2013;35(1):75-90. Accessed January 18, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/258