1. Assessment of High Velocity Impacts on Exposed Space Shuttle Surfaces;Christiansen,1993
2. Orbital Debris as Detected on Exposed Spacecraft;Bernhard;International Journal of Impact Engineering,1997
3. Composition and Frequency of Impact Residues Detected on LDEF Surfaces;Bernhard,1993
4. D.J. Kessler, et al., A Computer-Based Orbital Debris Environment Model for Spacecraft Design and Observation in Low Earth Orbit, NASA TM-104825, November 1996. Also ORDEM96 web page at: http://sn-callisto.jsc.nasa.gov/model/ordem96.html
5. NASA SSP30425, Rev B, Space Station Program Natural Environment Definition for Design,