О6
A23	Aerospace century XXI: space flight technologies. Vol.64. P.II. Advances in the Astronautical sciences [Текст] : Proceedings of the 33rd Annual AAS Int. Conf. held October 26-29, 1986, at Boulder, Colorado / Ed. by G.W.Morgenthaler, W.K.Tobiska. — San Diego : AAS, 1987. — 700с.