@article{Kretzschmar:1073,
      author        = "Kretzschmar, M. and Dammasch, I.E. and Dominique, M.",
      title         = "{Variations of solar extreme ultraviolet irradiance in the
                       rising phase of solar cycle 24 as observed by
                       PROBA2/LYRA.}",
      year          = "2012",
}