Massimo Tornatore Diego Lucerna Achille Pattavina Improving Efficiency of Backup Reprovisioning in WDM Networks. 196-200 2008 INFOCOM http://dx.doi.org/10.1109/INFOCOM.2008.48 conf/infocom/2008 db/conf/infocom/infocom2008.html#TornatoreLP08