Adesola Omotayo Moustafa A. Hammad Ken Barker Efficient Data Harvesting for Tracing Phenomena in Sensor Networks. 59-70 2006 conf/ssdbm/2006 SSDBM http://doi.ieeecomputersociety.org/10.1109/SSDBM.2006.21 db/conf/ssdbm/ssdbm2006.html#OmotayoHB06