https://www.esri.ie/system/files/publications/RS181_0.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/623810/Wage_Growth_in_PRB_Occupations_-_final_report__3_.pdf
https://ec.europa.eu/commission/presscorner/api/files/document/print/en/ip_23_4348/IP_23_4348_EN.pdf
https://medium.com/discourse/in-the-midst-of-covid-19-elites-have-begun-to-prepare-for-the-uprising-ca541ccec292