1. 1. A. Kushwaha and V. Kushwaha, ―Location based services using android mobile operating system,‖ Int. J. Adv. Eng. Technol., vol. 1, no. 1, pp. 14–20, 2011.
   2. D. Kulkarni, ―Context-aware role-based access control in pervasive computing systems,‖ in Proc. 13th ACM Symp. Access Control Models Technol., 2008, pp. 113–122.
   3. W. Enck, P. Gilbert, B.-G. Chun, L. P. Cox, J. Jung, P. McDaniel, and A. N. Sheth, ―Taintdroid: An information-flow tracking system for realtime privacy monitoring on smartphones,‖ in Proc. 9th USENIX Conf. Oper. Syst. Des. Implementation, 2010, pp. 1–6
   4. J. Leyden, (Apr. 2013). Your phone may not be spying on you now—but it soon will be. [Online].Available:http://www.theregister.co.uk/20 13/04/24/kaspersky_mobile_malware_infose
   5. R. Templeman, Z. Rahman, D. J. Crandall, and A. Kapadia, ―Placeraider: Virtual theft in physical spaces with smartphones,‖ in Proc. 20th Annual Netw. Distrib. Syst. Security Symp. (NDSS), Feb. 2013
   6. Erlingsson, F. Schneider, ―IRM enforcement of java stack inspection,‖ in Proc. IEEE Symp. Secur. Privacy, 2000, pp. 246–255
   7. D. Evans and A. Twyman, ―Flexible policydirected code safety,‖ in Proc. IEEE Symp. Secur. Privacy, 1999, pp. 32–45.