1. 2Randolph, T., et al, "Microthruster Propulsion for the Space Technology 7 (ST7) Technology Demonstration Mission," 42ndAIAAJointPropulsionConference,Sacramento,CA,July2006,AIAA2006-4320.
2. 3Loeb,H.,etal,"DevelopmentofRIT-microthrusters",Proceedingsofthe55thInternationalAstronauticalCongress, October 2004, Vancouver, Canada, IAC-04-S.4.04
3. 4Hofferbert, R., et al, "A cold focal plane chopper for Herschel-PACS - critical components and reliability," Proceedings of the 9thEurpoean Sapce Mechanisms and Tribology Symposium, Liege, Belgium, September 2001, ESA SP-480, ESAPublicationsDivision, USBN 92-9092-761-5, 2001, p.221-229.
4. 6Bassner, H., et al, "Development Steps of the RF-Ion Thrusters RIT," 27thInternational. Electric Propulsion Conference, Pasadena, CA, October 2001,IEPC-01-105.