JANONIS, Osvaldas. International unification and national bibliography. Knygotyra, [S. l.], v. 31, n. 24, p. 90–108, 2024. DOI: 10.15388/Knygotyra.1997.49. Disponível em: https://test.zurnalai.vu.lt/knygotyra/article/view/36424. Acesso em: 25 oct. 2025.