author        = "Cessateur, G. and Kretzschmar, M. and Krivova, N. and
                       Schmutz, W. and Solanki, S. and Thuillier, G. and Shapiro,
                       A.V. and Schöll, M. and Shapiro, A. I. and Dominique, M.
                       and Tagirov, R. and Wehrli, C. and Yeo, K. L.",
      title         = "{Solar Spectral Irradiance as observed by LYRA/PROBA2 and
      year          = "2012",