Berg H.P. Propellant storage and feed system for the radiofrequency ion propulsion system RITA : Rep.presented at the AIAA/DGLR/JSASS 21st intern.electric propulsion conf.,July 18-20,1990,Orlando,Fl. / H.P.Berg,H.F.Bassner, 1990. - 8 p. - Текст : непосредственный.