BaoKang Zhao Dan Wang Zili Shao Jiannong Cao Keith C. C. Chan Jinshu Su Yanqin Yang Towards Successive Privacy Protection in Sensor Networks. 167-172 2008 EUC (2) http://dx.doi.org/10.1109/EUC.2008.150 conf/euc/2008-2 db/conf/euc/euc2008-2.html#ZhaoWSCCSY08