http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Next generation hydrogen station composite data products
retail stations, data through Quarter 4 of 2018
National Renewable Energy Laboratory (U.S.)
1 online resource (104 pages) : color illustrations.
U.S. Department of Energy (DOE) DE-AC36-08GO28308.