HÁJEK, K.; ŠIKULA, J. The New High Sensitive Variant of Nonlinear Ultrasound Spectroscopy for Nondestructive Testing. Advances in Military Technology, [S. l.], v. 4, n. 1, p. 15–22, 2022. Disponível em: https://aimt.cz/index.php/aimt/article/view/1653. Acesso em: 23 nov. 2024.