1. Buzan, B. (1984). Economic structure and international security: The limits of the liberal case. International Organization, 38(4), 597–624.
2. Buzan, B., Wæver, O., & de Wilde, J. (1998). Security: A new framework for analysis. Boulder: Lynne Rienner Publishers.
3. EC. (2007). Towards common principles of flexicurity: More and better jobs through flexibility and security. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:52007DC0359&from=EN. Accessed 20 Jan 2020.
4. Grieco, J. M. (1988). Anarchy and the limits of cooperation: A realist critique of the newest liberal institutionalism. International Organization, 42(3), 485–507.
5. Keohane, R. O., & Nye, J. S. (2012) [1977]. Power and interdependence: World politics in transition (4th ed.). Boston: Longman.