Ming Liu Yuan Zheng Jiannong Cao Guihai Chen Lijun Chen 0006 Hai-gang Gong An Energy-Aware Protocol for Data Gathering Applications in Wireless Sensor Networks. 3629-3635 2007 ICC http://dx.doi.org/10.1109/ICC.2007.598 conf/icc/2007 db/conf/icc/icc2007.html#LiuZCCCG07