Iseki, H., Taylor, B.D. (2009). Not all transfers are created equal: Towards a framework relating transfer connectivity to travel behaviour. Transport Reviews, 29(6), 777-800.

Hunecke, M., Blöbaum, A., Matthies, E., & Höger, R. (2001). Responsibility and environment: Ecological norm orientation and external factors in the domain of travel mode choice behavior. Environment and Behavior, 33(6), 830-852.

Werner, C., Brown, B., & Gallimore, J. (2009). Light rail use is more likely on walkable blocks: Further support for using micro-level environmental audit measures. Journal of Environmental Psychology, XX(X) (available online), 1-9.