@article{Kretzschmar:756,
      author        = "Kretzschmar, M. and Cessateur, G. and Dammasch, I.E. and
                       Dominique, M. and Dudok de Wit, T. and Meftah, M. and
                       Schöll, M. and Shapiro, A.V.",
      title         = "{Analysis of spectral irradiance observed by PREMOS:
                       degradation and comparison with SODISM and various
                       proxies}",
      month         = "Sep",
      year          = "2013",
}