http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
photo-optical method for estimating directional wave-slope spectra
National Oceanic and Atmospheric Administration.
...supported in part by the National Oceanic and Atmospheric Administration under Sea Grant Program contract number GH-107.
Report (Stevens Institute of Technology. Ocean Engineering Department) ; OE-71-9