Huntress W.T. Soviet Robots in the Solar System : Mission Technologies and Discoveries / by Wesley T. Huntress, Mikhail Ya Marov., 2011 r=on-line (Введено оглавление). - Текст : электронный.
[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3637 : Mission to Planet Earth(MTPE) : Paper presented at AIAA space programs and technologies conf.,Sept.25-28,1990,Huntsville(Al). / G.S.Wilson,W.T.Huntress, 1990. - 10 p. - Текст : непосредственный.