1. Arakawa, A., 1972: Design of the UCLA general circulation model. Tech. Rept., No. 7, Dept, of Meteorology, UCLA, CA.
2. Asselin, R., 1972: Frequency filter for time inte-gration,. Mon. Wea. Rev., 100, 487-490.
3. Bengtsson, L., 1981: The weather forecast. Pure and Applied Geophysics, 119, 515-537.
4. Bengtsson, L., H. Bottger and M. Kanamitsu, 1982: Simulation of hurricane-type vortices in a general circulation model. Tellus, 34, 440-457.
5. Bengtsson, L., and A. Lange, 1982: Results of the WMO/CAS Numerical Weather Prediction Data Study and Intercomparison Project for forecast for the Northern Hemisphere in 1979-80. World Meteorological Organization, Geneve.