"Slavery, Abduction and Forced Servitude in Sudan: report of the International Eminent Persons Group" (Sklaverei, Entführung und Zwangsknechtschaft in Sudan: Bericht der Internationalen Gruppe namhafter Persönlichkeiten), 22.
Slavery, Abduction and Forced Servitude: Report of the International Eminent Persons Group, 22 May 2002, United States Department of State.