TY - RPRT AU - A.P.M. Baede AU - M. Jarraud AU - U. Cubasch CY - Shinfield Park, Reading DA - 1979 LA - eng M1 - 15 M3 - Technical Report PB - ECMWF PP - Shinfield Park, Reading PY - 1979 EP - 40 TI - Adiabatic formulation and organization of ECMWF's spectral model ER -