[1]
V. Bobrovs, J. Porins, and G. Ivanovs, “Influence of Nonlinear Optical Effects on the NRZ and RZ Modulation Signals in WDM Systems”, ELEKTRON ELEKTROTECH, vol. 76, no. 4, pp. 55–58, Apr. 2007, doi: 10.5755/j02.eie.10719.