1. Development, qualification and delivery status of the HEMPT based ion propulsion system for SmallGEO;Koch,2011
2. Status of the THALES high efficiency multi stage plasma thruster development for HEMP-T 3050 and HEMP-T 30250;Koch,2007
3. Continued investigation of diverging cusped field thruster;Courtney,2008
4. Preliminary characterization of a diverging cusped field (DCF) thruster;Young,2009
5. The HEMPT concept-a survey on theoretical considerations and experimental evidences;Koch,2011