About: http://webisa.webdatacommons.org/36289380

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	In yet another alternative embodiment, each of the transmitters 16, reference station 18 and/or mobile receiver 22 are synchronized to the GPS or other GNSS system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr