PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Berkeley group developed ovens, specialized wall coatings and other innovations, which have contributed to the international effort to advance the performance of ECR sources for the production of highly charged ions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • aps.org