Bibliography: p. 205-206 Offprint: Voben, Rainer, Marianne Bechhaus-Gerst, eds., Nilotic studies: proceedings of the International Symposium on Languages and History of the Nilotic Peoples, Cologne, January 4-6, 1982: (Kölner beiträge zur Africanistik 10:183-206, 1983)
