Also available via Internet from the NTRS web site. Address as of 09/10/08: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19860014068%5F1986014068.pdf ; current access is available via PURL.
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1986. 2 microfiches : negative.