1. AEE, 2000.Est-ce la bonne route ? Indicateurs d'intégration transport et environnement dans l'UE : TERM 2000. Document de synthèse. Rapport, AEE, Copenhague.
2. Barret J., Scott A., Vallack H., 2001.The Ecological Footprint of Passenger Transport in Merseyside. Rapport pour le compte de Merseytravel, Stockholm Environment Institute / Sustainable Steps Environmental Consultants, York (http://www.merseytravel.gov.uk/pdf/EFofPassengerTransport.pdf).
3. Bell K., 1999.Environmental Performance Indicators: Proposals for Indicators of the Environmental Effects of Transport. Report of the Ministry for the Environment New Zealand, Wellington.
4. Borken J., 2003. Indicators for sustainable mobility: a policy oriented approach, in Joumard, R. (Ed.),Environnement & transports : [actes du] 1er colloque [international Environnement & transports], Avignon, 19-20 juin 2003, Arcueil, INRETS.
5. Braat L., 1991. The predictive meaning of sustainable indicators, in Kuik, O., Verbruggen, H. (Eds),Search of Indicators of Sustainable Development, Dordrecht, Kluwer Academic Publisher, 57-70.