Høigilt, Jacob & Øystein H. Rolandsen (2010) Making Cooperation Attractive: Post-referendum Relations between Egypt and the Sudan, PRIO Paper. Oslo: PRIO.
Høigilt, Jacob; Åshild Falch & Øystein H. Rolandsen (2010) The Sudan Referendum and Neighbouring Countries: Egypt and Uganda, PRIO Paper. Oslo: PRIO.
The Peace Research Institute Oslo (PRIO) conducts research on the conditions for peaceful relations between states, groups and people.