Long term monitoring of metal pollution in sediments as a tool to investigate the effects of engineering works in estuaries. A case study, the Nerbioi-Ibaizabal estuary (Bilbao, Basque Country)

1. Garmendia, M.
2. Fdez-Ortiz de Vallejuelo, S.
3. Liñero, O.
4. Gredilla, A.
5. Arana, G.
6. Soto, M.
7. de Diego, A.