Distributed to depository libraries in microfiche.
"November 1989."
Also available via Internet from the NTRS web site. Address as of 6/2/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900004451%5F1990004451.pdf; current access is available via PURL.
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration,] 1990. 1 microfiche : negative.