1. Meteoroid and debris impact features documented on the long duration exposure facility,;See;NASA JSC Report # 24608,1990
2. LDEF - 69 Months in Space. Third Post-Retrieval Symposium, NASA CP xxxx;Levine,1994
3. Origin of orbital debris on LDEF's trailing surfaces;Kessler,1993
4. Proceedings of the First European Conference on Space Debris,1993
5. Deriving the velocity distribution of meteoroids from the measured meteoroid impact directionality on the various LDEF surfaces;Zook,1992