NOWICKI, A., W. SECOMSKI, and M. PLESKOT. “Estimation of Cardiac Flow in Children by Means of Imaging Gated Pulse Doppler”. Archives of Acoustics 9, no. 1-2 (July 10, 2015): 233–242. Accessed April 25, 2025. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3219.