WASET
    Shaimaa M. Mohamed and  Haitham S. Hamza and  Imane A. Saroit,  Harmony Search-based K-Coverage Enhancement in Wireless Sensor Networks.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 97(1). 178 - 186
    [viewed 04 May 2024]. Available from: https://publications.waset.org/pdf/10000281.