Description
Item Description:Title from title screen (viewed Feb. 3, 2009).
Electronic resource.
Physical Description:16 pages : digital, PDF file.
Format:Mode of access: Internet from the NTRS web site. Address as of 2/03/09: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890017394%5F1989017394.pdf ; current access is available via PURL.