About: http://webisa.webdatacommons.org/21290000

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 optimal reference phase can be set by adding an additional phase of cos???1(ID/IS)+[(2n+1)??????????] to the reference beam where n is an integer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de