Paula B. Harboe and  Edilson da Silva and  José R. Souza,  Analysis of FWM Penalties in DWDM Systems Based on G.652, G.653, and G.655 Optical Fibers.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2008, vol. 24(12). 2674 - 2680
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