http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Evaluation findings of the LTL 2000 pavement marking retroreflectometer
Highway Innovative Technology Evaluation Center (U.S.)
prepared by the Highway Innovative Technology Evaluation Center.
"A service of the Civil Engineering Research Foundation (CERF)."