About: http://webisa.webdatacommons.org/43788125

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	where m is an integer, and, for light having a specific wavelength, the light from all of the grating lines will interfere constructively.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr