Bartoszewski, Bartosz. “Comparison of the State of Polish-Lithuanian Relations before and After Russia’s Aggression Against Ukraine in 2014”. In Boundaries and Spheres of Influence in Domestic Politics and International Relations, edited by Agnieszka Kisztelińska-Węgrzyńska and Natalia Matiaszczyk, 155–173. Poland: Lodz University Press, 2023. Accessed January 25, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/609/chapter/1630.