JAWORSKA, K. Missing cards. Problems with emigration biographics based on several queries, or struggle with merging sources. Bibliotekarz Podlaski, [S. l.], v. 48, n. 3, p. 39–54, 2020. DOI: 10.36770/bp.517. Disponível em: https://bibliotekarzpodlaski.pl/index.php/bp/article/view/517. Acesso em: 27 apr. 2024.