A. Mojtaba Aghajani and B. Leila Shavakhi, Investigation and Comparison of Energy Intensity in Iranian Transportation Industry (Case Study Road Transportation Sector). journal = {International Journal of Transport and Vehicle Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2011, vol. 51(3). 575 - 582 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/2141.