<http://webisa.webdatacommons.org/272427512>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/143982679>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/272427512> .
<http://webisa.webdatacommons.org/272427512>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/272427512>	<http://www.w3.org/ns/prov#value>	"The sensitivity of the backscattering to factors such as variations in soil density and composition, and surface roughness were examined experimentally." .