1. Study of Meteoroid Impact Into Ablative Heat Shield Materials, NASA CR-65375;McMath,1966
2. Hypervelocity Impact Tests of Shuttle Tile Material Targets;Friesen,1996
3. Effects of Soft Foam Insulation Impact, NASA CR-160400;Rand,1979
4. Hypervelocity Impact Tests of Experimental Crew Return Vehicle (XCRV) Thermal Protection Materials, Part I;Friesen,1996
5. Hypervelocity Impact Tests of Experimental Crew Return Vehicle (XCRV) Thermal Protection Materials, Part II;Friesen,1996