http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Simulation and analysis of a geopotential research mission
semi-annual status report, grant NAG5-528
National Aeronautics and Space Administration.
Title from title screen (viewed Jun. 2, 2009).
Mode of access: Internet from the NTRS web site. Address as of 06/02/09: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19870014609%5F1987014609.pdf ; current access is available via PURL.