About: http://webisa.webdatacommons.org/46625631

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	Other techniques, such as the use of an electromagnetic cage, Helmholtz cage, or the like, may also be used to calibrate the magnetic sensors 108-114.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com