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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	ty is a crucial aspect of the changing role of information professionals (Lipow 1992). ??? The rest of this article is only available to active members of Questia
http://www.w3.org/ns/prov#wasQuotedFrom	questia.com