Papanastasopoulos, N. (2021) “Deterrence theory and strategy in the international system from the Cold War to the multipolar era. Towards a new strategy of ‘extended deterrence’ in Greek-Turkish relations |”, Political Observer | Revista Portuguesa de Ciência Política, (15). doi: 10.33167/2184-2078.RPCP2021.15/pp.109-126.