Wirta, Kaarle, and Henri Hannula. “Trade Must Go On. The Tar Trade, Nordic Rivalry, and Cross-Imperial Commercial Diplomacy, 1675–79”. Legatio: The Journal for Renaissance and Early Modern Diplomatic Studies 5 (January 1, 2022): 53–76. Accessed August 16, 2024. https://apcz.umk.pl/Legatio/article/view/36820.