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@inproceedings{EJS01, author = {Thomas Erlebach and Klaus Jansen and Eike Seidel}, title = {Polynomial-Time Approximation Schemes for Geometric Graphs}, booktitle = {Proceedings of the Twelth Annual ACM-SIAM Symposium on Discrete Algorithms (SODA 2001)}, pages = {671--679}, month = {Jan}, year = {2001} }