Mohamed, S. M., H. S. Hamza, and I. A. Saroit,
"Harmony search-based k-coverage enhancement in wireless sensor networks",
Int. J. Comput. Electr. Autom. Control Inf. Eng., vol. 9, issue 1, pp. 19924, 2015.
copy at http://scholar.cu.edu.eg/?q=hshamza/publications/harmony-search-based-k-coverage-enhancement-wireless-sensor-networks-0