%0 conference lecture %@ %A Hakvoort, J. H. M., Heineke, M., Heymann, K., Kuehl, H., Riethmueller, R., Witte, G. %D 1997 %J Symposium on Ecology of Estuary and Soft Sediment Habitats %T A basis for mapping the erodibility of tidal flats by optical remote sensing %U %X