_:b70014818	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://schema.org/PropertyValue> .
_:b70014818	<http://schema.org/value>	"10.1007/BF00007768" .
_:b70014818	<http://schema.org/propertyID>	<http://www.wikidata.org/prop/direct/P356> .