[Reports] / Amer.inst.of aeronautics and astronautics. N 89-3165 : variable geometry airship : a challenge in lighter-than-air systems design; Rep.presented at the AIAA 8th lighter-than-air system technology conf.,Jackson-ville(Fl)/Oct.-5-7,1989 / J.D.Taylor, 1989. - 35 p. - Текст : непосредственный.