http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of a workshop sponsored by NASA Lyndon B. Johnson Space Center and held in Houston, Texas, July 27-29, 1982
compiled by Donald J. Kessler, Shin-Yi Su.
Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1985