http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Pilots' estimation of altitude of a small unmanned aircraft system
John A. Volpe National Transportation Systems Center (U.S.)
1 online resource (iv, 25 pages) : color illustrations
Tracy Lennertz [and six others] ; prepared for US Department of Transportation, Federal Aviation Administration.
"Performing agency: US Department of Transportation, John A. Volpe National Transportation Systems Center"--Report documentation page.
Includes bibliographical references (pages 14).
Sponsored by U.S. Department of Transportation, Federal Aviation Administration 51FA0IB700