БАБАК, В. П.; ФИЛОНЕНКО, С. Ф.; КРИШАН, М. Digital analysis for studying the acoustic properties of materials. Proceedings of National Aviation University (archive), [S. l.], v. 3, n. 2, p. 133–137, 1999. DOI: 10.18372/2306-1472.3.9390. Disponível em: http://jrnl.kai.edu.ua/index.php/visnik/article/view/9390. Acesso em: 17 apr. 2026.