1.

Conference Proceedings

Conference Proceedings
Pippin, H.G. ; Finckenor, M.M.
Pub. info.: Optical system contamination : effects, measurements, and control VII : 9-11 July 2002, Seattle, USA.  pp.234-245,  2002.  Bellingham, Wash., USA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 4774
2.

Technical Paper

Technical Paper
Dursch, H.W. ; Keough, B.K. ; Pippin, H.G.
Pub. info.: NASA Technical Reports.  (NASA-CR-4646),  pp.1-58,  1995.  National Aeronautics and Space Adminstration
3.

Technical Paper

Technical Paper
Dursch, H.W. ; Keough, B.K. ; Pippin, H.G.
Pub. info.: NASA Technical Reports.  (NASA-CR-4898),  pp.1-107,  1994.  National Aeronautics and Space Adminstration