https://www.brookings.edu/wp-content/uploads/2018/04/es_20180416_digitalcurrencies.pdf
https://www.strath.ac.uk/media/1newwebsite/departmentsubject/strathclydebusinessschool/fraserofallander/FEC_Vol_41_No_2.pdf
https://cdn.obr.uk/March-2020_EFO_presentation_slides.pdf
https://www.bruegel.org/2021/04/setting-europes-economic-recovery-in-motion-a-first-look-at-national-plans/