Jin Zhu Symeon Papavassiliou Stella Kafetzoglou Jie Yang On the Modeling of Data Aggregation and Report Delivery in QoS-constrained Sensor Networks. 347-351 2006 conf/percom/2006w PerCom Workshops http://doi.ieeecomputersociety.org/10.1109/PERCOMW.2006.105 db/conf/percom/percomw2006.html#ZhuPKY06