1. W. G. Melbourne, Interplanetary Trajectories and Payload Capabilities of Advanced Propulsion Vehicles, JPL TR32–68. Jet Propulsion Lab., Pasadena, California, 1961.
2. “Fast interplanetary missions with low-thrust propulsion systems,”;Moeckel;NASA Tech. Rept.,1961
3. “The effect of magnetic fields on the breakdown of gases at microwave frequencies,”;Lax;J. Appl. Phys.,1950
4. “Electron conductivity at cyclotron resonance,”;Ben Daniel;Phys. Fluids,1963
5. Propagation of Electromagnetic Waves in Plasmas;Ginzburg,1961