Hans-Heinrich Bass: Structural Problems of West African Cocoa Exports and Options for Improvement. (PDF-Datei; 174 kB). In: African Development Perspectives Yearbook. Volume 11, 2005/06 und Afrika – escaping the Primary Commodities Dilemma. Lit-Verlag, Münster 2006, ISBN 3-8258-7842-2, S. 245–263.