Etiope G, Italiano F, Favali P, Smriglio G. Soil degassing at Ustica Island: Comparison between 1997 and 1999 surveys. Geofis Int [Internet]. 2002 Jul. 1 [cited 2024 May 19];41(3):217-21. Available from: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/773