1. Adamat R, Foster I, Baban S (2003) Groundwater vulnerability and risk mapping for the Basaltic aquifer of the Azraq basin of Jordan using GIS, remote sensing and DRASTIC. J Applied Geography 23:303–324
2. Aller L, Bennet T, Lehr JH, Petty RJ, Hackett G (1987) DRASTIC: a standardised system for evaluating groundwater pollution potential using hydrogeologic settings. US Environment Protection Agency, Washington, DC, p 455
3. Andreo B, Goldscheider N, Vadillo I, Maria Vias J, Neukum C, Sinreich M, Jiménez P, Brechenmacher J, Carrasco F, Hotzl H, Jesus Perles M, Zwahlen F (2005) Karst groundwater protection: first application of a Pan-European approach to vulnerability, hazard and risk mapping in the Sierra de Libar (Southern Spain). Sci Total Environ 357:54–73
4. Evans BM, Mayers WL (1990) A GIS-based approach to evaluating regional groundwater pollution potential with DRASTIC. J Soil Water Conserv 45:242–245
5. Ferreira JP, Oliveira (1997) M DRASTIC groundwater vulnerability mapping of Portugal. In Groundwater: an endangered resource. Proceedings of theme C of the 27th Congress of the International Association for Hydraulic Research, San Francisco, USA, pp 6