1. 2Henning, Allen B., and Lundstrom, Reginal R.``Flight Test of an Erectable Spacecraft used for Decelerator Testing at Simulated MarsEntry Conditions,'' NASA TN D 69-10, Oct.1972.
2. Some test results from the NASA planetary entry parachute program.
3. 4Hoog,R.D.,adMichel,F.C.``BalloonLaunchedVikingDeceleratorTestProgram,''NASACR112288,March1973.