http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Pilot performance during simulated approaches and landings made with various computer-generated visual glidepath indicators
Mark F. Lewis, Henry W. Mertens, FAA Civil Aeromedical Institute.
Prepared for Department of Transportation, Federal Aviation Administration, Office of Aviation Medicine.