1. Bibliografia
2. Allison, Graham T. Essence of Decision: Explain the Cuban Missile Crisis. Boston: Little Brown, 1971.
3. Barrento, António. Da Estratégia. Parede: Tribuna da História, 2010.
4. Barton, Laurence. Crisis in Organizations: Managing and Communicating in the Heat of Chaos. Cincinnati, OH: Southwestern, 1993.
5. Bauman, Zygmunt. Liquid Times: Living in an Age of Uncertainty. 2a Ed. Cambridge: Polity Press, 2008.