@article{CSIS_2011_8_4_a2,
     author = {Feng Xia and Xue Yang and Haifeng Liu and Da Zhang and Wenhong Zhao},
     title = {Energy-Efficient {Opportunistic} {Localization} with {Indoor} {Wireless} {Sensor} {Networks}},
     journal = {Computer Science and Information Systems},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2011_8_4_a2/}
}