TY - RPRT AU - J. Steppeler CY - Shinfield Park, Reading DA - 02/1986 LA - eng M1 - 55 M3 - Technical Report PB - ECMWF PP - Shinfield Park, Reading PY - 1986 EP - 59 TI - Finite element schemes for the vertical discretization of the ECMWF forecast model using quadratic and cubic elements ER -