1. Radioisotope Electric Propulsion of Small Payloads for Regular Access to Deep Space;Noble,1993
2. Radioisotope Electric Propulsion for Robotic Science Missions to Near-Interstellar Space;Noble;J. British Interplanetary Society,1996
3. Radioisotope Electric Propulsion for Small Robotic Space Probes;Noble;J. British Interplanetary Society,1996
4. Ion Propulsion;Brewer,1970
5. Space Nuclear Power: An Overview;Bennett;J. Propulsion and Power,1996