1.

Technical Paper

Technical Paper
Chen, S. ; Billings, S.A.
Pub. info.: NASA Technical Reports.  pp.1-46,  1991.  National Aeronautics and Space Adminstration
2.

Technical Paper

Technical Paper
Chen, S. ; Billings, S.A. ; Luo, W.
Pub. info.: NASA Technical Reports.  pp.1-32,  1988.  National Aeronautics and Space Adminstration
3.

Technical Paper

Technical Paper
Chen, S. ; Cowan, C.F.N. ; Billings, S.A. ; Grant, P.M.
Pub. info.: NASA Technical Reports.  pp.1-22,  1989.  National Aeronautics and Space Adminstration
4.

Technical Paper

Technical Paper
Billings, S.A. ; Jaaluddin, H.B. ; Chen, S.
Pub. info.: NASA Technical Reports.  pp.1-38,  1990.  National Aeronautics and Space Adminstration
5.

Technical Paper

Technical Paper
Chen, S. ; Billings, S.A. ; Cowan, C.F.N. ; Grant, P.M.
Pub. info.: NASA Technical Reports.  pp.1-41,  1990.  National Aeronautics and Space Adminstration
6.

Technical Paper

Technical Paper
Billings, S.A. ; Jamaluddin, H.B. ; Chen, S.
Pub. info.: NASA Technical Reports.  pp.1-55,  1991.  National Aeronautics and Space Adminstration
7.

Technical Paper

Technical Paper
Chen, S. ; Billings, S.A.
Pub. info.: NASA Technical Reports.  pp.1-27,  1989.  National Aeronautics and Space Adminstration
8.

Technical Paper

Technical Paper
Chen, S. ; Billings, S.A. ; Grant, P.M.
Pub. info.: NASA Technical Reports.  pp.1-28,  1991.  National Aeronautics and Space Adminstration
9.

Technical Paper

Technical Paper
Chen, S. ; Billings, S.A. ; Grant, P.M.
Pub. info.: NASA Technical Reports.  pp.1-31,  1989.  National Aeronautics and Space Adminstration