About: http://webisa.webdatacommons.org/19023176

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	If desired, a succession of two or more anti-reflection layers of similar total thickness, i.e. usually 10 nm to 80 nm especially 20 nm to 60 nm, may be used under the silver layer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr