Hájek K, Nenakhova V. Principles of a Defect Localisation in Nonlinear Ultrasonic Mixing Impulse Spectroscopy. AiMT [Internet]. 2015 Jan. 25 [cited 2024 Nov. 21];9(2):41-8. Available from: https://aimt.cz/index.php/aimt/article/view/1038