%0 conference lecture %@ %A Schroeder, F.,Wiltshire, K. H.,Bloecker, G.,Klages, D.,Mathieu, B.,Knauth, H.-D. %D 1993 %J International Symposium on Nutrient Dynamics in Coastal and Estuarine Environments %N %P %T The effect of sediments on the nitrogen budget of the Elbe estuary %U %X