https://www.esri.ie/system/files/publications/RS181_0.pdf
https://www.boeckler.de/pdf/p_study_hbs_376.pdf
https://medium.com/discourse/in-the-midst-of-covid-19-elites-have-begun-to-prepare-for-the-uprising-ca541ccec292
http://www.oecd.org/fr/emploi/emp/Editorial-and-executive-summary-FR.pdf