[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2611 : Design operation and critical issues of the U.S. space station freedom propulsion system : Rep. presented at the AIAA/ASME/SAE/ASEE 25th joint propulsion conf.,Monterey(Ca),July 10-12,1989 / J.Morano,J.Henderson, 1989. - 10 p. - Текст : непосредственный.