About: http://webisa.webdatacommons.org/326768389

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	The surface is a two axis, orthogonally separated cubic with a 6 ??m of peak to valley sag at the extreme ends of the aperture.
http://www.w3.org/ns/prov#wasQuotedFrom	wiley.com