1. Berls, R. E. (2023). Strengthening Russia’s influence in international affairs, Part II: Russia and its neighbors: A sphere of influence or a declining relationship? The Nuclear Threat Initiative. https://www.nti.org/analysis/articles/strengthening-russias-influence-in-international-affairs-part-ii-russia-and-its-neighbors-a-sphere-of-influence-or-a-declining-relationship/.
2. Brüggemann, K., & Kasekamp, A. (2008). The politics of history and the “War of Monuments” in Estonia. Nationalities Papers, 36(3), 425–448.
3. Donmez, B. B. (2022). One third of Estonia’s military budget donated to Ukraine. Anadolou Agency. https://www.aa.com.tr/en/russia-ukraine-war/one-third-of-estonias-military-budget-donated-to-ukraine/2586116.
4. Estonian Centre for International Development. (2023). Ukraine—Estdev. https://estdev.ee/ukraine2/?lang=en.
5. Estonian Chambre of Commerce and Industry. (2022). Estonia is donating to Ukraine in record amounts. https://www.koda.ee/en/news/estonia-donating-ukraine-record-amounts.