[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2443 : Economic analysis of a beam-powered, global aerospace transportation system : Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf., Monterey(Ca), July 10-12, 1989 / D.Walton,G.F.List,L.N.Myrabo, 1989. - 6 p. - Текст : непосредственный.