About: http://webisa.webdatacommons.org/179336687

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 technique is an extension of the widespread standard-target sonar calibration method, based on the use of metallic spheres as standard targets.
http://www.w3.org/ns/prov#wasQuotedFrom	bham.ac.uk