<http://www.bibsonomy.org/bibtex/201ef064097be111bcb13a61b458dbe75/dblp>	<http://swrc.ontoware.org/ontology#hasExtraField>	_:vb942649 .
_:vb942649	<http://swrc.ontoware.org/ontology#value>	"978-1-57735-787-2" .
_:vb942649	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://swrc.ontoware.org/ontology#Field> .
_:vb942649	<http://swrc.ontoware.org/ontology#key>	"isbn" .