ZDUNEK, M. Searching in the catalogue of the German national library Deutsch National Bibliothek . Bibliotekarz Podlaski, [S. l.], v. 35, n. 2, p. 171–185, 2017. Disponível em: https://bibliotekarzpodlaski.pl/index.php/bp/article/view/278. Acesso em: 30 apr. 2024.