@article{BetkerKosiankowskiLangeetal.2014, author = {Andreas Betker and Dirk Kosiankowski and Christoph Lange and Frank Pfeuffer and Christian Raack and Axel Werner}, title = {Energy efficiency in extensive IP-over-WDM networks with protection}, journal = {Operations Research Proceedings 2012}, editor = {Stefan Helber and Michael Breitner and Daniel R{\"o}sch and Cornelia Sch{\"o}n and Johann-Matthias Graf von der Schulenburg and Philipp Sibbertsen and Marc Steinbach and Stefan Weber and Anja Wolter}, pages = {93 -- 99}, doi = {10.1007/978-3-319-00795-3_14}, year = {2014}, }