Also available via Internet from the NASA Technical Report Server web site. Address as of 5/3/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900002683%5F1990002683.pdf; current access available via PURL.
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1989]. 1 microfiche.