@misc{hakvoort_a_basis_1997, 
author={Hakvoort, J. H. M.,Heineke, M.,Heymann, K.,Kuehl, H.,Riethmueller, R.,Witte, G.},
title={A basis for mapping the erodibility of tidal flats by optical remote sensing},
year={1997},
howpublished = {conference lecture: Sydney (AUS); 04.-07.02.1997},
note = {Online available at: \url{} (DOI). Hakvoort, J.; Heineke, M.; Heymann, K.; Kuehl, H.; Riethmueller, R.; Witte, G.: A basis for mapping the erodibility of tidal flats by optical remote sensing. Symposium on Ecology of Estuary and Soft Sediment Habitats. Sydney (AUS), 1997.}}