HARDTWIG, E. OBERFLACHENWELLEN IN ENERGIEVERZEHRENDEN MEDIEN. Annals of Geophysics, [S. l.], v. 7, n. 2, p. 143–193, 1954. DOI: 10.4401/ag-5698. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5698. Acesso em: 28 mar. 2024.