@article{DudokdeWit:1319,
      author        = "Dudok de Wit, T. and Bruisma, Sean and Kretzschmar, M. and
                       Lefèvre, L. and Marqué, C.",
      title         = "{60 years of solar radio proxies for assessing the
                       long-term evolution of solar forcing}",
      month         = "May",
      year          = "2014",
}