1. BCSC (British Council of Shopping Centres). 2006. “Online retailing: the impact of click on brick”. Available at:http://www.bcsc.org(accessed 23 February 2007)
2. Browne, M., Allen, J., Woodburn, A. and Piotrowska, M. 2007. “Light goods vehicles in urban areas. Literature review carried out as part of work module 1 of the Green logistics module”. Available at:http://www.greenlogistics.org(accessed 16 May 2007)