R. BUKOWSKI, “40th Winter School on Wave and Quantum Acoustics Szczyrk, Poland, February 27 – March 4, 2011”, Arch. Acoust., vol. 36, no. 1, pp. 177–178, Oct. 2013, Accessed: Jan. 17, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/206