1.

Technical Paper

Technical Paper
Heeg, J. ; Zeiler, T.A. ; Pototzky, A.S. ; Spain, C.V. ; Engelund, W.C.
Pub. info.: NASA Technical Reports.  (NASA-TM-109007),  pp.1-13,  1993.  National Aeronautics and Space Adminstration
2.

Technical Paper

Technical Paper
Gilbert, M.G. ; Heeg, J. ; Pototzky, A.S. ; Spain, C.V. ; Soistmann, D.L. ; Dunn, H.J.
Pub. info.: NASA Technical Reports.  (NASA-TM-101689),  pp.1-16,  1990.  National Aeronautics and Space Adminstration