About: http://webisa.webdatacommons.org/5918451

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	In addition, surface and bulk characteristics of both chromium carbide and chromium nitride have been carefully examined with techniques such as XPS, SEM, and XRD [21???25].
http://www.w3.org/ns/prov#wasQuotedFrom	hindawi.com