1. Development and flight history of the SERT II spacecraft
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3. 3) Nagano, H., Gotoh, Y. and Nishida, E.: Development of Ion Engine System for ETS-VI, ISTS 94-a-63, 1994.
4. 4) Sankovic, J. M. and Dunning, J. W.: An Overview of Current NASA Activities in Electric Propulsion Technology, IEPC-99-003, 1999.
5. 5) MUSES-C Mission Outline, ISAS, 2000.