_:vb39891	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb39892 .
_:vb39892	<http://www.w3.org/ns/r2rml#constant>	<http://purl.org/dc/terms/issued> .
_:vb39893	<http://www.w3.org/ns/r2rml#column>	"Erscheinungsjahr" .
_:vb39891	<http://www.w3.org/ns/r2rml#objectMap>	_:vb39893 .