W. Adi and  Khaled E. A. Negm and  A. Mabrouk and  H. Ghraieb,  Authenticated Mobile Device Proxy Service.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2007, vol. 5(5). 780 - 785
    [viewed 28 February 2020]. Available from: https://publications.waset.org/pdf/6760.