@misc{scharfe_multidecadal_changes_2011, 
author={Scharfe, M.,Callies, U.},
title={Multi-decadal changes in the marine ecosystem of Helgoland Island, German Bight, North Sea},
year={2011},
howpublished = {conference lecture: Plymouth (GB); 22.-23.09.2011},
note = {Online available at: \url{} (DOI). Scharfe, M.; Callies, U.: Multi-decadal changes in the marine ecosystem of Helgoland Island, German Bight, North Sea. Biodiversity & Global Change, Plankton 2011. Plymouth (GB), 2011.}}