<!-- was ist hier was --><hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Tillett, Barbara</hi> (2003): <!-- sept/okt --> „What is FRBR?“. Library of Congress Cataloging Distribution Service, 2004 , in: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Technicalities</hi> 25 (5) <ptr xmlns="http://www.tei-c.org/ns/1.0" target="https://web.archive.org/web/20091229040757/http://www.loc.gov/cds/downloads/FRBR.PDF" /> [letzter Zugriff 30. November 2016].