@inproceedings{OrlowskiWernerWessaely2012, author = {Sebastian Orlowski and Axel Werner and Roland Wess{\"a}ly}, title = {Estimating trenching costs in FTTx network planning}, booktitle = {Operations Research Proceedings 2011}, editor = {Diethart Klatte and Hans-Jakob L{\"u}thi and Karl Schmedders}, pages = {89 -- 94}, year = {2012}, }