1. Steiniger, S., Moritz, N., Alistair, E.: Foundation of Location Based Services. Lecture Notes on LBS (2006)
2. Lecture Notes in Computer Science;G.D. Abowd,1999
3. Liu, Y., Wilde, E.: Personalized Location-Based Services. In: Proc. of the iConference (2011)
4. Bouidghaghen, O., Tamine, L., Boughanem, M.: Context-Aware User’s Interests for Personalizing Mobile Search. In: 12th IEEE Int. Conference on Mobile Data Management (2011)
5. Hosseini-Pozveh, M., Nematbakhsh, M., Movahhedinia, N.: A multidimensional approach for context-aware recommendation in mobile commerce. (IJCSIS) International Journal of Computer Science and Information Security 3(1) (2009)