KOVALEV, A. S.; SYRKIN, E. S. Shear elastic surface waves and system symmetry. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 47, n. 10, p. 956–962, 2021. DOI: 10.1063/10.0006070. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f47-0956e. Acesso em: 10 лис. 2025.