Dreval , Yuriy. “DAG HAMMARSKJÖLD AND THE CONCEPT OF PREVENTIVE DIPLOMACY”. The Journal of V. N. Karazin Kharkiv National University. Series Law, no. 39 (June 30, 2025): 373-379. Accessed December 5, 2025. https://periodicals.karazin.ua/law/article/view/25860.