@article{HAENEL15_ACP,
   author = "F. J. Haenel and G. P. Stiller and T. von Clarmann and B. Funke
             and E. Eckert and N. Glatthor and U. Grabowski and S. Kellmann
             and M. Kiefer and A. Linden and T. Reddmann",
   title  = "Reassessment of {MIPAS} age of air trends and variability",
   journal= "Atmos. Chem. Phys.",
   volume = "15",
   number = "22
   doi    = "10.5194/acp-15-13161-2015",
   pages  = "13161-13176",
   year   = "2015"   }