About: http://webisa.webdatacommons.org/276679569

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	This source condition cannot be used on a closed surface, such as S in the left hand image of Fig. 2, since erroneous mirror image fields will, in general, propagate into the total field region.
http://www.w3.org/ns/prov#wasQuotedFrom	opticsinfobase.org