[Reports] / Amer.inst.of aeronautics and astronautics. N 90-2090 : Three-dimensional analysis of solid propellant grains using nonlinear viscoelastic model : Rep. presented at the AIAA/SAE/ASME/ASEE 26th joint propulsion conf., July 16-18, 1990, Orlando(Fl) / S.Finne,C.Futsaether,J.Botnan,H.Langtangen, 1990. - 8 p. - Текст : непосредственный.