Arsenic in ground drinking water. The regional monitoring plan or Castilla y León (Spain)

1. Garcia-Villanova, R.J.
2. Rodríguez Torrero, P.
3. Toruño Fonseca, I.
4. González Paramás, A.M.
5. Gómez Bárez, J.A.
6. Cordón Marcos, C.