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Date: 2015-01-14 15:25:56 | Lunar Injection, Circumnavigation, Flyby and Gravity Assist Trajectories For Direct Lunar Polar Surface Landings, Lagrange Point Deliveries, Mars and Asteroid Transfer Orbits, and Core Stage Recovery Thomas Lee Elifritz,Add to Reading ListSource URL: webpages.charter.netDownload Document from Source WebsiteFile Size: 34,79 KBShare Document on Facebook |