[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2106 : optimized space station tethered elevator design : Rep. presented at the AIAA/AHS/ASEE aircraft design, systems a. operations conf., July 31- Aug.2,1989, Seattle(Wa) / M.Haddock,L.Anderson, 1989. - 9 p. - Текст : непосредственный.