About: http://webisa.webdatacommons.org/135786578

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	This article is an attempt to summarize the current state of knowledge and to suggest a clear research agenda for addressing these questions.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu