WASET
    Carlos Gonzalez,  Improving Security by Using Secure Servers Communicating via Internet with Standalone Secure Software.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2017, vol. 126(6). 741 - 745
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10007284.