The optical-UV spectral energy distribution of the unabsorbed AGN population in the XMM-Newton Bright Serendipitous SurveyE. Marchese, R. Della Ceca, A. Caccianiga, P. Severgnini, A. Corral and R. FanaliA&A, 539 (2012) A48DOI: https://doi.org/10.1051/0004-6361/201117562
