1. France and Germany to Fire Up Stalled Fighter Jet Project;Abboud L.;The Financial Times,2022
2. Aggestam, L. 2006. “Role theory and European foreign policy: A framework analysis.” In The European Union’s Roles in International Politics: Concepts and Analysis, edited by O. Elgström and M. Smith, 11–30. New York: Routledge.
3. Allision, G. T. 1971. Essence of Decision Explaining the Cuban Missile Crisis. Boston: HarperCollins Publishers.
4. Bennet, A., and J. Checkel. 2015. Process Tracing: From Metaphor to Analytical Tool. Cambridge, Massachusetts: Cambridge University Press.
5. Bennet, A., and A. George. 2005. Case Studies and Theory Development in the Social Sciences. Cambridge, MA & London: MIT Press.