1. NAVSTAR GPS Operations. http://tycho.usno.navy.mil/gpsinfo.html.
2. A. Agarwal, S.R. Das, Dead Reckoning in Mobile Ad Hoc Networks, in: Proceedings of IEEE Wireless Communications and Networking Conference (WCNC 2003), 2003.
3. D. Barbara, T. Imielinksi, Sleepers and Workaholics: Caching Strategies for Mobile Environments, in: Proceedings of ACM SIGMOD, 1994, pp. 1–12.
4. M. Buddhikot, G. Chandranmenon, S. Han, Y.W. Lee, S. Miller, L. Salgarelli, Integration of 802.11 and Third-Generation Wireless Data Networks, in: Proceedings of IEEE INFOCOM, 2003.
5. A scalable low-latency cache invalidation strategy for mobile environments;Cao;IEEE Transactions on Knowledge and Data Engineering,2003