Dhinu Johnson and  Gurdip Singh,  Data Gathering Protocols for Wireless Sensor Networks.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 553 - 559
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/4239.