Zu einer Reform des deutschen Staatsangehorigkeitsrechts

The A to Z of Slavery and Abolition (Historical Dictionaries of Religions, Philosophies, and Movements, No. 40)

Historical dictionary of slavery and abolition

Slavery and colonial rule in French West Africa

Breaking the Chains

Peasants in Africa

Enslaved Africans and Their Descendants in Africa

Islam and imperialism in Senegal