SCHUBERT, M.; FREYER, K.; TREUTLER, H. C.; WEISS, H. Using radon-222 in soil gas as an indicator of subsurface contamination by non-aqueous phase-liquids (NAPLs). Geofísica Internacional, [S. l.], v. 41, n. 4, p. 433–437, 2002. DOI: 10.22201/igeof.00167169p.2002.41.4.491. Disponível em: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/842. Acesso em: 17 may. 2024.