OPILSKA, Lidia, and Janusz ŚWIDER. “The Analysis of Surface Wave Propagation in a Crystal With a Monoclinic Structure”. Archives of Acoustics 7, no. 2 (March 7, 2016): 155–162. Accessed May 7, 2025. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3277.