Hayoung Oh Kijoon Chae An Abnormal Area Scanning for Scalable and Energy-Efficient and Secure SensorNet Management. 592-596 2008 MUE http://doi.ieeecomputersociety.org/10.1109/MUE.2008.91 conf/mue/2008 db/conf/mue/mue2008.html#OhC08