1. Emerging Forms of Covert Surveillance Using GPS-Enabled Devices
2. ABC News, 2008. Inquiry called into assassination conviction.ABC news[online], 6 June. Available from:http://www.abc.net.au/news/2008-06-06/inquiry-called-into-assassination-conviction/2461870[Accessed 3 August 2011]
3. Ackerman, L., Kempf, J., and Miki, T., 2003.Wireless location privacy: law and policy in the US, EU and Japan[online]. Reston, VA: Internet Society, Internet Society Member Briefing 15. Available from:http://www.isoc.org/briefings/015/[Accessed 3 August 2011]
4. Bettini, C., Wang, X.S., and Jajodia, S., 2005. Protecting privacy against location-based personal identification.In: W. Jonker and M. Petkovic, eds.Secure data management. Lecture Notes in Computer Science, vol. 3674, Heidelberg, Berlin: Springer Verlag, 185–199
5. Bettini, C.et al., eds., 2009.Privacy in location-based applications: research issues and emerging trends. Lecture Notes in Computer Science, vol. 5599, New York, Heidelberg, Berlin: Springer-Verlag