About: http://webisa.webdatacommons.org/436053848

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	Three regions can be differentiated: The region close to the sample surface, up to 250nm deep, heavily contaminated with carbon and other impurities.
http://www.w3.org/ns/prov#wasQuotedFrom	nsti.org