1. Cosmical Electrodynamics, Fundamental Principles;Alfvén,1963
2. Potential double layers in the ionosphere;Block;Cosmic Electrodyn,1972
3. Double layers;Block,1975
4. Mechanisms that may support magnetic field-aligned electric fields in the magnetosphere;Block;Ann. geophys.,1976
5. Self-consistent particle and parallel electrostatic field distributions in the magnetospheric-ionospheric auroral region;Chiu;J. geophys. Res.,1978