⁸ Véanse Max Singer y Aaron Wildavsky, The Real World Order: Zones of Peace, Zones of Turmoil, Chatham, Nueva Jersey; Chatham House, 1993; Robert O. Keohane y Joseph S. Nye, «Introduction: The End of the Cold War in Europe», en Keohane, Nye y Stanley Hoffmann (comps.), en After the Cold War: International Institutions and State Strategies in Europe, 1989-1991, Cambridge, Harvard University Press, 1993, pág. 6; y James M. Goldgeier y Michael McFaul, «A Tale of Two Worlds: Core and Periphery in the Post-Cold War Era», en International Organization n^o 46 (primavera de 1992), 467-491.<<