@article{BAUMGAERTNER10_ACP,
   author = "A. J. G. Baumgaertner and P. J{\"o}ckel and H. Riede and
             G. Stiller and B. Funke",
   title  = "Energetic particle precipitation in {ECHAM5/MESSy} --
             {P}art 2: {S}olar {P}roton {E}vents",
   journal= "Atmos. Chem. Phys.",
   volume = "10",
   pages  = "7285-7302",
   year   = "2010"   }