Includes bibliographical references (pages 14-15).
Also available via Internet from the NASA Technical Report Server web site. Address as of 3/20/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900010970%5F1990010970.pdf; current access available via PURL.
Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration, 1990]. 1 microfiche : negative.