WALCZAK, H. At the roots of the Second Polish Republic’s diplomacy. The creation, development and functioning of the foreign ministry of the Regency Kingdom of Poland in the years 1917-1918. Res Gestae. Historical Journal, [S. l.], v. 16, p. 73–91, 2023. DOI: 10.24917/24504475.16.5. Disponível em: https://resgestae.uken.krakow.pl/article/view/10137. Acesso em: 15 nov. 2026.