@article{STECK01_AO,
   author = "T. Steck and T. von Clarmann",
   title  = "Constrained profile retrieval applied to the observation mode of 
             the {M}ichelson Interferometer for Passive Atmospheric Sounding",
   journal= "Appl. Opt.",
   volume = "40",
   number = "21",
   pages  = "3559-3571",
   year   = "2001"   }