Geochemistry of naturally occurring arsenic in groundwater and surface-water in the southern part of the Poopó Lake basin, Bolivian Altiplano

1. Ormachea Muñoz, M.
2. Garcia Aróstegui, J.L.
3. Bhattacharya, P.
4. Sracek, O.
5. Garcia Moreno, M.E.
6. Kohfahl, C.
7. Quintanilla Aguirre, J.
8. Hornero Diaz, J.
9. Bundschuh, J.