@misc{callies_analysis_of_2004, 
author={Callies, U.},
title={Analysis of transport processes in the North Sea},
year={2004},
howpublished = {conference lecture: Geesthacht (D); 30.08.-10.09.2004},
note = {Online available at: \url{} (DOI). Callies, U.: Analysis of transport processes in the North Sea. Summerschool: Observation of marine coastal systems: from measurements to modelling. Geesthacht (D), 2004.}}