Conceptual design of hybrid rocket engine utilizing lunar-derived propellant : доклад, тезисы доклада / D. Brower, W. Adams, T. Kelly, 1990. - 8 p. - Текст : непосредственный.
Pavelko P. Master memory map for the Commodore 64 : Xerocop / P.Pavelko,T.Kelly, 1983. - 194 kol. - Текст : непосредственный.
[Reports] / Amer.inst.of aeronautics and astronautics. N 89-0352 : Analytic solution of perturbed motion in near-circular orbit due to J2,J3 earth zonal harmonics in rotating and inertial cartesian reference frames : Rep. presented at 27th aerospace sciences meet.,Jan.9-12,1989/Reno(Nv) / J.Kechichian,T.Kelly, 1989. - 12 p. . - Текст : непосредственный.