Let us consider the data of GO with degree 2, from Sardinha, 2019. The best fit with Lorentzian and Gaussian functions obtained by Fityk, is given in the Figure ; the red dots are the data, the green curve the best fit, and the blue and magenta curves the components of decomposition. In the Figure , a deconvolution with q-Gaussians is given. However, as suggested by Ferrari and Robertson about G peaks fitted BWF asymmetrically, we could use a split-q-Gaussian for G and a q-Gaussian for D. The result is shown in the following Figure . A split-q-Gaussians has been used for G peak, center 1599 cm -1 . For D, we used a q-Gaussian, q=1.88, center 1344 cm-1. Two further q-Gaussians have been used on the left and on the right. The sample GO2 data are a courtesy by Sardinha, 2019.