<http://webisa.webdatacommons.org/121818074>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<hindawi.com> .
<http://webisa.webdatacommons.org/121818074>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/489856815>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/121818074> .
<http://webisa.webdatacommons.org/121818074>	<http://www.w3.org/ns/prov#value>	"Tree Top ModelAnalysis of our measurement data showed that the signal attenuation caused by trees mainly depends on the length of the direct path through a tree top." .