W. PAJEWSKI, “Transversal bleustein-gulayev (B.G.) surface waves on a piezoelectric ceramic”, Arch. Acoust., vol. 2, no. 3, pp. 197–206, Mar. 2016, Accessed: Apr. 28, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3483