| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Energy and Sustainable Development | 978-3-89473-227-1 (3-89473-227-X) | 1994 |
| Industrialiation Based on Agricultural Development: African Development Perspectives Yearbook | 978-3-89473-234-9 (3-89473-234-2) | 1995 |
| The Nile Question: Hydropolitics, Legal Wrangling, Modus Vivendi and Perspectives | 978-3-8258-5630-4 (3-8258-5630-5) | 2002 |