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Petersen, Roger D.; & Liaras, Evangelos (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. .
Petersen, Roger D.(2006) Review of The Production of Hindi-Muslim Violence in Contemporary India 110–114.
The Peace Research Institute Oslo (PRIO) conducts research on the conditions for peaceful relations between states, groups and people.