http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Development of airborne electromagnetic survey instrumentation and application to the search for buried sand and gravel
O. R. Russell, J. R. Everett, and J. A. Uncapher.
Prepared by Earth Satellite Corporation, Washington, D.C., under contract number DOT-FH-11-9144.
Federal Highway Administration R&D report M 0366.