PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Report on the petroleum and synthetic oil industry of Germany Microsoft Academic Search This extremely good and comprehensive report gave a detailed summary of the German processes of fuel and lubricants production and testing, including coal and shale carbonization, coal and lignite hydrogenation, and petroleum refining processes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov