About: http://webisa.webdatacommons.org/391658723

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	Furthermore, for such optical communication systems to be of general utility, the couplers associated therewith must be such as to be adaptable to use in the field.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es