[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2612 : Propulsion element requirements using electrical power system unscheduled power : Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf.,Monterey(Ca),July 10-12,1989 / F.Zimmermann,K.Hodge, 1989. - 6 p. - Текст : непосредственный.