Georgi Bebrov and  Rozalina Dimova,  Proposal of Optimality Evaluation for Quantum Secure Communication Protocols by Taking the Average of the Main Protocol Parameters: Efficiency, Security and Practicality.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2019, vol. 146(2). 48 - 52
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/10010088.