1. Espace et Société- Actes des recontres 1998–1999 (French Research Minister - 2000)
2. GMES: (Global Monitoring for Environment and Security) - Joint Working document by the Staff of the European Commission and ESA Executive
3. ERSIS Final report. ESA Contract 13592/99/NL/SF
4. Mapping from Space;Konecny,1999
5. Capabilities and Limitations of the Interferometric CartWheel;Massonnet,1999