http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Relativistic gravitational experiments in space
Proceedings of a workshop sponsored by the National Aeronautics and Space Administration, Washington, D.C., and held in Annapolis, Maryland June 28-30, 1988
Reduced gravity environments - Experiments - Congresses