Sources
- Commission of the European Communities
- Commission of the European Communities SEC
- Consolidated Text (CONSLEG)
- Council documents
- ECJ (judgement)
- European Commission
- European Commission SWD
- IGC-Documents
- Official Journal of the European Communities Series C
- Official Journal of the European Communities Series L
- Official Journal of the European Union Series C
- Official Journal of the European Union Series C
- Official Journal of the European Union Series L
- Official Journal of the European Union Series L
- Other Documents