Originally presented as the author's dissertation.
"August 1988."
Includes bibliographical references (pages 186-191).
Also available via Internet from the NASA Technical Report Server web site. Address as of 4/18/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900014178%5F1990014178.pdf; current access available via PURL.
Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration, 1990]. 3 microfiches : negative.