Syed Iftikhar Hussain Shah and  Vasilis Peristeras and  Ioannis Magnisalis,  Government (Big) Data Ecosystem: Definition, Classification of Actors, and Their Roles .   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2020, vol. 160(4). 102 - 114
    [viewed 21 January 2022]. Available from: https://publications.waset.org/pdf/10011154.