A. ŚLIWIŃSKI and B. LINDE, “International Congress on Ultrasonics Gdańsk, Poland, September 5 – 8, 2011”, Arch. Acoust., vol. 36, no. 4, pp. 975–980, Oct. 2013, Accessed: Jun. 22, 2025. [Online]. Available: https://acoustics.ippt.pan.pl/index.php/aa/article/view/159