W. ZIÓŁKOWSKI and A. ŚLIWIŃSKI, “Application of a vibrational impedance head to the measurement of the complex elastic modulus by the driving point impedance method”, Arch. Acoust., vol. 16, no. 3-4, pp. 591–607, Dec. 1991, Accessed: Feb. 26, 2026. [Online]. Available: https://acoustics.ippt.pan.pl/index.php/aa/article/view/1252