. Multi-isotopic approach for tracing nitrogen groundwater pollution and evaluating natural attenuation processes in the Baix Empordà basin (NE Spain). 5th Nitrogen Workshop: Towards a better efficiency in N use. Lleida, juny 2007.

. Multi-isotopic approach for tracing nitrogen groundwater pollution and evaluating natural attenuation processes in the Baix Empordà basin (NE Spain). 5th Nitrogen Workshop: Towards a better efficiency in N use. Lleida, juny 2007.