1. Energization of positive ions in the cometary foreshock region;Amata;Planet. Space Sci.,1985
2. Comets and cometary missions—an introductory review;Axford,1979
3. Acceleration of cosmic rays by shock waves;Axford,1982
4. Magnetic field reconnection;Axford,1984
5. MHD Simulation of a comet;Fedder;Icarus,1986