Ioannis Chatzigiannakis Athanasios Kinalis Sotiris E. Nikoletseas Adaptive Energy Management for Incremental Deployment of Heterogeneous Wireless Sensors. 42-72 2008 42 Theory Comput. Syst. 1 http://dx.doi.org/10.1007/s00224-007-9011-z db/journals/mst/mst42.html#ChatzigiannakisKN08