Farbod Behnaminia and  Saeed Samet,  Blockchain Technology Applications in Patient Tracking Systems Regarding Privacy-Preserving Concerns and COVID-19 Pandemic.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2023, vol. 194(2). 144 - 156
    [viewed 10 May 2024]. Available from: https://publications.waset.org/pdf/10012975.