1. Dissolved Trace Metals in the Estuarine Plumes of the Humber, Thames and Rhine Rivers;Althaus,1992
2. Humber Estuary—A case study;Barr;Hydrobiologia,1990
3. The estuary as a sediment trap: alternate approaches to estimating its filtering efficiency;Biggs,1984
4. Processes influencing the fate of trace metals in the North Sea;Burton;Philosophical Transactions of the Royal Society, London. A,1993
5. Manual on Analytical Quality Control for the Water Industry;Cheeseman,1976