%0 book part %@ %A Vollmer, M., Hudec, B., Knauth, H.-D., Schwedhelm, E. %D 1990 %J Estuarine water quality management: monitoring, modelling and research - Coastal and estuarine studies %P 153-158 %T Seasonal variations of mineralogical composition and heavy metal contamination of suspended matter in the river Elbe estuary %U %X