PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Page, S. and Krumdieck, S. (2009) System-level energy efficiency is the greatest barrier to development of the hydrogen economy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • canterbury.ac.nz