Diego Lucerna Massimo Tornatore Achille Pattavina On the Benefitsof a Fast Heuristic for Backup Reprovisioning in WDM Networks. 2699-2703 2008 GLOBECOM http://dx.doi.org/10.1109/GLOCOM.2008.ECP.517 conf/globecom/2008 db/conf/globecom/globecom2008.html#LucernaTP08