TY - RPRT AU - Adrian Simmons AU - R. Strüfing CY - Shinfield Park, Reading DA - 11/1981 LA - eng M1 - 28 M3 - Technical Report PB - ECMWF PP - Shinfield Park, Reading PY - 1981 EP - 68 TI - An energy and angular momentum conserving finite-difference scheme hybrid coordinates and medium range weather forecasts ER -