Letter from Nasjonalbiblioteket, avdeling Oslo, to Library Of Congress Exchange and Gift Section (EUR), dated Jan. 11, 1999: "From January 1, 1999 the National Library of Norway is no longer a part of the University of Oslo Library, but an independent organisation.
Its Årsmelding, 2000 t.p. (Nasjonalbiblioteket)
Gabriel : gateway to Europe's national libraries, WWW, Dec. 21, 1999 (National Library of Norway; Norwegische Nationalbibliothek; Bibliothèque nationale de Norvège)
OCLC, Dec. 21, 1999 (Part of the Universitetsbiblioteket i Oslo through 1998)
Living memory, c2006 p. 6 (Norwegian National Library) p. 14 (1914-1999; moved to Oslo and renamed National Library of Norway)