Hai-gang Gong Ming Liu Yinchi Mao Lijun Chen 0006 Li Xie Distributed Energy Efficient Data Gathering with Intra-cluster Coverage in Wireless Sensor Networks. 109-120 2006 conf/apweb/2006 APWeb http://dx.doi.org/10.1007/11610113_11 db/conf/apweb/apweb2006.html#GongLMCX06