@inproceedings{WU-RFID-INFOCOM-07,
    author= "Chong Wang and Hongyi Wu and Nian-Feng Tzeng",
    title = "{RFID-Based 3-D Positioning Schemes}",
    booktitle = "Proc. of IEEE Conference on Computer Communications (INFOCOM)",
    pages="1235-1243",
    year = "2007",
}