https://www.supremecourt.gov/opinions/20pdf/20-197_5ie6.pdf
https://rusi.org/commentary/data-driven-responses-coronavirus-pandemic-and-privacy-implications
https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.html?fbclid=IwAR0dSCCOIXwL78pt0tf8MhK2CGkPPzX3djf7rSWY-tlKUWyEfV8Ui7Fmg-4#/bda7594740fd40299423467b48e9ecf6
http://www.bta.bg/en/c/DF/id/1731928