Tight, M., Vicat, A., Bristow, A., Pridmore, A., & May, A. (2007). An Exploration of Household Response to Personal Travel Carbon-Reduction Targets. International Journal of Sustainable Transportation, 1(3), 143-159.

Cao, X., Mokhtarian, P. L., & Handy, S. L. (2009). The relationship between the built environment and nonwork travel: A case study of Northern California

Yeung, J., Wearing, S., & Hills, A. P. (2008). Child transport practices and perceived barriers in active commuting to school. Transportation Research Part A: Policy and Practice, 42(6), 895-900.