1. Modification of the warm rain processes;Berry;Proceedings of the First National Conference on Weather Modification,1968
2. Electrical screening layers around charged clouds;Brown;J. Geophys. Res.,1971
3. Byers, H. R., , Elements of Cloud Physics, University of Chicago Press, Chicago, Ill., 1965,
4. Chalmers, J. A., , Atmospheric Electricity, 2nd ed. Pergamon, New York, 1967,
5. Convective electrification of clouds;Chiu,1974