Amitabha Ghosh Yi Wang Bhaskar Krishnamachari Efficient Distributed Topology Control in 3-Dimensional Wireless Networks. 91-100 2007 SECON http://dx.doi.org/10.1109/SAHCN.2007.4292821 conf/secon/2007 db/conf/secon/secon2007.html#GhoshWK07