Ciechanowski, Jan. “The International Situation and Territorial Shape of the Republic of Poland in 1919 from the Perspective of Spanish Diplomacy”. Remembrance and Justice 38, no. 2 (December 30, 2021): 113–124. Accessed November 13, 2026. https://czasopisma.ipn.gov.pl/index.php/pis/article/view/1150.