[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2028 : Prospects for routine space transportation : Rep. presented at the AIAA/AHS/ASEE aircraft design, systems a. operations conf., July 31 - Aug.2, 1989, Seattle(Wa) / R.H.Gulcher,L.E.Brown, 1989. - 9 p. - Текст : непосредственный.
[Reports] / Amer.inst.of aeronautics and astronautics. N 89-5004 : past as prologue : Rep.presented at AIAA first nat.aerospace plane conf.,20-21 July 1989/Dayton(Oh) / R.H.Gulcher, 1989. - 9 p. - Текст : непосредственный.