Modelling of atmospheric mid-infrared radiative transfer: the AMIL2DA algorithm intercomparison experiment - von Clarmann, T; Hopfner, M; Funke, B; Lopez-Puertas, M; Dudhia, A; Jay, V; Schreier, F; Ridolfi, M; Ceccherini, S; Kerridge, B; Reburn, J; Siddans, R (JOURNAL OF QUANTITATIVE SPECTROSCOPY and RADIATIVE TRANSFER, 2003)