PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Summary: Correspondence, memoranda, speeches, writings, reports, notes, slides, photographs, and other papers relating to Backus's work as a computer scientist at IBM on programming languages, particularly FORTRAN. Includes material relating to Backus's early work on the IBM Selective Sequence Electronic Calculator and Backus-Naur Form (BNF).
http://www.w3.org/ns/prov#wasQuotedFrom
  • softwarepreservation.org