WASET
    Umar Mujahid and  Greatzel Unabia and  Hongsik Choi and  Binh Tran,  A Review of Ultralightweight Mutual Authentication Protocols.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2020, vol. 160(4). 96 - 101
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10011147.