@inproceedings{KochWessaely2004, author = {Thorsten Koch and Roland Wess{\"a}ly}, title = {Hierarchical Infrastructure Planning in Networks}, booktitle = {Proceedings of the 3rd Conference on Applied Infrastructure Research, 9. October 2004, Berlin}, editor = {Carl-Friedrich Elmer and Christian von Hirschhausen}, url = {http://opus.kobv.de/zib/volltexte/2004/818/}, year = {2004}, }