KARUS, e. v. Absorption of Stationary Elastic Vibrations ili Rocks. Annals of Geophysics, [S. l.], v. 11, n. 2, p. 125–129, 1958. DOI: 10.4401/ag-5745. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5745. Acesso em: 20 oct. 2021.