S. Basagni, I. Chlamtac, V. Syrotiuk, and B. Woodward. MobiCom '98: Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking, page 76--84. New York, NY, USA, ACM, (1998)
R. Kassab, and J. Lamirel. ADC '06: Proceedings of the 17th Australasian Database Conference, page 149--156. Darlinghurst, Australia, Australia, Australian Computer Society, Inc., (2006)