FERRARA, V.; PAPPALARDO, G. The hydrogeological map of the etna volcanic massif as useful tool for groundwater resources management. Italian journal of engineering geology and environment, [S. l.], p. 77–89, 2008. DOI: 10.4408/IJEGE.2008-01.S-06. Disponível em: https://rosa.uniroma1.it/rosa02/engineering_geology_environment/article/view/1338. Acesso em: 27 apr. 2024.