Khorheh, M.A., Moisiadis,F., and Davarzani, H. (2015). Socio-environmental performance of transportation systems. Management of Environmental Quality;Bradford 26 (6): 825-851
Veronique Van Acker, Phil Goodwin & Frank Witlox (2016) Key research themes on travel behavior, lifestyle, and sustainable urban mobility, International Journal of Sustainable Transportation, 10:1, 25-32, DOI: 10.1080/15568318.2013.821003
Porritt, J. (2013). The World We Made: Alex McKay’s story from 2050. London: Phaidon Press. (Travel and Transport sections)
Scoffham, S. Making Connections.
Susanne Becken (2007) Tourists' Perception of International Air Travel's Impact on the Global Climate and Potential Climate Change Policies, Journal of Sustainable Tourism, 15:4, 351-368, DOI: 10.2167/jost710.0