WIRTA, Kaarle, HANNULA, Henri i KORTEKANGAS, Otso. Diplomacy of an Empire. Alternative Agents in Seventeenth-Century Sweden. Legatio: The Journal for Renaissance and Early Modern Diplomatic Studies. Online. 1 siječanj 2022. Vol. 5, pp. 5-19. [Accessed 5 srpanj 2024]. DOI 10.12775/LEGATIO.2021.01.