About: http://webisa.webdatacommons.org/330812092

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	Regardless of the myriad schemes developed to release copper and other toxins slowly, the problems of controlled slow release have not been solved.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es