@article{CSIS_2011_8_4_a9,
     author = {Haifeng Liu and Feng Xia and Zhuo Yang and Yang Cao},
     title = {An {Energy-Efficient} {Localization} {Strategy} for {Smartphones}},
     journal = {Computer Science and Information Systems},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2011_8_4_a9/}
}