@inproceedings{zhou10maintaining,
    author="Dengpan Zhou and Jie Gao",
    title="Maintaining Approximate Minimum Steiner Tree and $k$-center for Mobile Agents in a Sensor Network",
    booktitle="Proc. of the 29th Annual IEEE Conference on Computer Communications (INFOCOM'10)",
    month="April",
    year="2010"
}