@inproceedings{BleyKoch2008, author = {Andreas Bley and Thorsten Koch}, title = {Integer programming approaches to access and backbone IP-network planning}, booktitle = {Modeling, Simulation and Optimization of Complex Processes, Proceedings of the 3rd International Conference on High Performance Scientific Computing, March 6-10, Hanoi, Vietnam}, pages = {87 -- 110}, url = {http://opus.kobv.de/zib/volltexte/2002/709/}, year = {2008}, }