@InProceedings{helmberg:DagSemProc.09261.17, author = {Helmberg, Christoph}, title = {{Network Models with Convex Cost Structure like Bundle Methods}}, booktitle = {Models and Algorithms for Optimization in Logistics}, pages = {1--8}, series = {Dagstuhl Seminar Proceedings (DagSemProc)}, ISSN = {1862-4405}, year = {2009}, volume = {9261}, editor = {Cynthia Barnhart and Uwe Clausen and Ulrich Lauther and Rolf H. M\"{o}hring}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.09261.17}, URN = {urn:nbn:de:0030-drops-21905}, doi = {10.4230/DagSemProc.09261.17}, annote = {Keywords: Lagrangian decomposition, large scale convex optimization, bundle methods, integer multi-commodity flow} }