Historical accumulation of potentially toxic trace elements resulting from mining activities in estuarine salt marshes sediments of the Asturias coastline (northern Spain)

1. Garcia-Ordiales, E.
2. Cienfuegos, P.
3. Roqueñí, N.
4. Covelli, S.
5. Flor-Blanco, G.
6. Fontolan, G.
7. Loredo, J.