1. Mirels, H. and Rosenbaum, B. M., “Analysis of One-Dimensional Ion Rocket with Grid Neutralization,“ NASA TN D-266, March 1960.
2. Naiditch, S. et al., “Ion Propulsion Systems - Experimental Studies,“ ARS preprint 928–59, 1959.
3. Childs, J. H., “Design of Ion Rockets and Test Facilities,“ IAS Paper No. 59–103, 1959.
4. Sellen, J. M. and Shelton, H., “Transient and Steady State Behavior in Cesium Ion Beams,“ Published elsewhere in this volume; also ARS preprint 1379–60, Nov. 1960.
5. Kaufman, H. R. and Reader, P. D., “Experimental Performance of Ion Rockets Employing Electron-Bombardment Ion Sources,“ Published elsewhere in this volume; also ARS preprint 1374–60, Nov. 1960.