KERTÉSZ, P.; MAREK, I. APPLICATION DES ONDES ULTRASONORES AUX ESSAIS DE LA PHYSIQUE DES ROCHES. Periodica Polytechnica Civil Engineering, [S. l.], v. 15, n. 1, p. 13–30, 1971. Disponível em: https://pp.bme.hu/ci/article/view/4301. Acesso em: 19 may. 2024.