@misc{hagner_international_policies_2001, 
author={Hagner, C., Gandrass, J.},
title={International Policies of Dredged Material in the North Sea},
year={2001},
howpublished = {conference poster: Fredda di Maratea (I);},
note = {Hagner, C.; Gandrass, J.: International Policies of Dredged Material in the North Sea. In: 'The International Dimension of Environmental Policies' EURESCO-Conferencees, Aqua. Fredda di Maratea (I). 2001.}}