BOSCHI, E. The reciprocity theorem for porous anisotropic media. Annals of Geophysics, [S. l.], v. 25, n. 4, p. 607–613, 1972. DOI: 10.4401/ag-5125. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5125. Acesso em: 22 may. 2026.