On the complexity of the regenerator placement problem in optical networks.

Michele Flammini Alberto Marchetti-Spaccamela Gianpiero Monaco Luca Moscardelli Shmuel Zaks On the complexity of the regenerator placement problem in optical networks. 154-162 2009 SPAA http://doi.acm.org/10.1145/1583991.1584035 conf/spaa/2009 db/conf/spaa/spaa2009.html#FlamminiMMMZ09