@book{STILLER00_FZK,
   editor = "G. P. Stiller",
   title  = "The {K}arlsruhe {O}ptimized and {P}recise {R}adiative {T}ransfer
             {A}lgorithm ({KOPRA})",
   publisher = "Forschungszentrum Karlsruhe",
   series   = "Wissenschaftliche Berichte",
   volume = "FZKA 6487",
   year   = "2000"      }