@misc{bray_grey_green_2003, 
author={Bray, D., Hagner, C., Grossmann, I.},
title={Grey, Green, Big Blue: three regional development scenarios addressing the future of Schleswig-Holstein},
year={2003},
howpublished = {GKSS report},
note = {Bray, D.; Hagner, C.; Grossmann, I.: Grey, Green, Big Blue: three regional development scenarios addressing the future of Schleswig-Holstein. GKSS 2003-25. 2003.}}