[Reports] / Amer.inst.of aeronautics and astronautics. N 87-1005 : Ion engine system for North-South station keeping of engineering test satellite VI : Papers presentet at 19th AIAA/DGLR/JSASS Intern.electric propulsion conf. May 11-13, 1987, Colorado Springs(Co) / S.Dhimada,H.Takehagara,H.Kimura,K.Kajiwara, 1987. - 6 p. - Текст : непосредственный.