00379nam a22001337a 4500020001500000020001900015082001500034100002400049245005900073260004200132300001200174650003800186700002100224  a0130606375  a978-0130606372  a621.382MUR  aMurthy, G. Sira Ram  aWDM, Optical Networks: concepts, design and algorithms  aNew Delhi:bPearson Education,c2004.  a430p. ;  aWavelength division multiplexing.  aGurusamy, Mohan