Ahmed Mateen and  Zhu Qingsheng and  Ahmad Bilal,  Optimized Approach for Secure Data Sharing in Distributed Database.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2018, vol. 138(6). 371 - 376
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/10009052.