@article{HOFFMANN08_ACP,
   author = "L. Hoffmann and M. Kaufmann and R. Spang and R. M{\"u}ller
             and J. J. Remedios and D. P. Moore and C. M. Volk and
             T. von Clarmann and M. Riese",
   title  = "Envisat {MIPAS} measurements of {CFC}-11: retrieval,
             validation, and climatology",
   journal= "Atmos. Chem. Phys.",
   volume = "8",
   pages  = "3671-3688",
   year   = "2008"   }