[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2749 : Low cost design approaches for the advanced launch system(ALS) propulsion system : Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf.,Monterey(Ca),July 10-12,1989 / R.D.McKown, 1989. - 16 p. - Текст : непосредственный.