@misc{colijn_eutrophication_related_2003, 
author={Colijn, F.,Hesse, K.-J.,Kannen, A.},
title={Eutrophication related indicators for European coastal waters},
year={2003},
howpublished = {conference lecture (invited): Loveno di Menaggio(I); 07.-10.09.2003},
note = {Online available at: \url{} (DOI). Colijn, F.; Hesse, K.; Kannen, A.: Eutrophication related indicators for European coastal waters. Workshop Ecological Indicators: Theoretical fundamentals for consistent applications in environmental management. Loveno di Menaggio(I), 2003.}}