1. Ang-Olson, J., & Schroeer, W. (2002). Energy efficiency strategies for freight trucking: potential impact on fuel use and greenhouse gas emissions. Transportation Research Record, 1815, 11–18.
2. Barla, P. (2007). ISO 14001 certification and environmental performance in Quebec’s Pulp and Paper Industry. Journal of Environmental Economics and Management, 53, 291–306.
3. Barla, P., Boucher, N., Demers, S., & Vekeman, F. (2004). Load factor of commercially used trucks. Document N03-03pa. Centre for Data and Analysis in Transportation, Québec.
4. Barla, P., Boucher, N., Bolduc, D., & Watters, J. (2008). Information technology in trucking. Center for Economic Studies Discussion Paper 08.13. Available on line < http://www.econ.kuleuven.be/CES/discussionpapers/Dps08/Dps0813.pdf >
5. Boylaud, O., & Nicoletti, G. (2001). Regulatory reform in road freight. OECD Economic Studies, 32, 229–251.