KOŁTOŃSKI, W. The effect of structure and swelling of concrete on the frequency of acoustic emission signals. Archives of Acoustics, [S. l.], v. 17, n. 1, p. 67–76, 2014. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1172. Acesso em: 26 apr. 2025.