1. Askew, M. (2011). When travel matters: Opportunities, barriers and policy options for workplace travel management in Sydney. Ph.D. thesis, Macquarie University, Sydney.
2. Burby, R., May, P., & Paterson, R. (1998). Improving compliance with regulations: Choices and outcomes for local government. Journal of the American Planning Association, 64(3), 324–334.
3. Elmore, R. (1978). Organizational models of social program implementation. Public Policy, 26(2), 185–228.
4. Elmore, R. (1979). Backward mapping: Implementation research and policy decisions. Political Science Quarterly, 94(4), 601–616.
5. Gunn, L. A. (1978). Why is implementation so difficult? Management Services in Government, 33, 169–176.