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Liaras, Evangelos & Roger D. Petersen (2006) Countering Fear in War: The Strategic Use of Emotion, Journal of Military Ethics 5(4): 317–333.
Petersen, Roger D. (2011) Western Intervention in the Balkans: The Strategic Use of Emotion in Conflict. : Cambridge University Press. .
The Peace Research Institute Oslo (PRIO) conducts research on the conditions for peaceful relations between states, groups and people.