W. ZIÓŁKOWSKI and A. ŚLIWIŃSKI, “A role of air in complex elastic modulus measurements of solid samples by transmissibility methods”, Arch. Acoust., vol. 18, no. 4, pp. 587–603, May 2014, Accessed: Jun. 10, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1165