LEHMANN, I. THE TIMES OF P AND S IN NORTHEASTERN AMERICA. Annals of Geophysics, [S. l.], v. 8, n. 4, p. 351–370, 1955. DOI: 10.4401/ag-5680. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5680. Acesso em: 27 apr. 2024.