1. Directorate-General for Energy and Transport (2001): Guide des services de la Direction Générale de l’Energie et des Transports. Verfügbar unter: , Stand: 07.12.2001.
2. Directorate-General for Energy and Transport (2002a): Presentation of the Directorate-General for Energy and Transport. Verfügbar unter: , Stand: 04.09.2002.
3. Directorate-General for Energy and Transport (2002b): The SAVE Programme. Verfügbar unter: , Stand: 06.05.2002.
4. Directorate-General for Energy and Transport (2003): Trans-European Networks. Verfügbar unter: http://europa.eu.int/comm/energy_transport/en/tn_en.html, Stand: 11.03.2003.
5. Directorate-General for Environment (2001): Management Plan 2001–2002. Verfügbar unter: , Stand: 8.08.2002.