About: http://webisa.webdatacommons.org/397370152

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 foundations of the theory are laid, all formulas needed to compute the coefficients of orders one, two, and three are derived, and those simplifications which arise when a surface is a sphere are considered in detail.
http://www.w3.org/ns/prov#wasQuotedFrom	opticsinfobase.org