WASET
    D. Satish Kumar and  N. Nagarajan,  Cluster Based Energy Efficient and Fault Tolerant n-Coverage in Wireless Sensor Network.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 83(11). 1512 - 1518
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/9997227.