feb. 06, 2012 Documentación técnica International symposium on efficient groundwater resources management (IGSTH 2009, 16-21 February 2009). Bangkok (Thailand) Environmental education criteria applied to hydrogeology and specially to managed aquifer recharge. A strategic proposition and some examples for Spain. (Pdf compressed to .zip 3.75 MB) Matrix-Catalogue (Excel format compressed to .zip 4.49 KB)