1. Results from Returned Spacecraft Surfaces;Zook,1990
2. Meteoroid and Debris Impact Features Documented on the Long Duration Exposure Facility;See;JSC # 24608,1990
3. Natural and orbital-debris particles on LDEF's trailing and forward facing surfaces;Hörz,1993
4. Assessment of High Velocity Impacts on Exposed Shuttle Surfaces;Christiansen,1993
5. Impact Damage to the RCC Panel on STS-45;Bernhard,1993