@misc{petersen_modelling_the_1989, 
author={Petersen, G.,Weber, H.,Grassl, H.},
title={Modelling the atmospheric transport of trace metals from Europe to the North Sea and the Baltic Sea},
year={1989},
howpublished = {conference lecture: Oslo (N); 06.03.1989},
note = {Online available at: \url{} (DOI). Petersen, G.; Weber, H.; Grassl, H.: Modelling the atmospheric transport of trace metals from Europe to the North Sea and the Baltic Sea. Colloquium of the Det Norske Meteoroloske Institutt. Oslo (N), 1989.}}