[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2826 : Electric propulsion : Selection of a power source; Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf.,Monterey(Ca),July 10-12,1989 / S.Szpak,L.Parnell, 1989. - 7 p. - Текст : непосредственный.
[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2828 : Li/SOCl2 propulsion system : research to development transition issues; Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf.,Monterey(Ca),July 10-12,1989 / J.Smith,S.Szpak, 1989. - 5 p. - Текст : непосредственный.