https://ecipe.org/wp-content/uploads/2023/04/ECI_23_PolicyBrief_04-2023_LY01.pdf
https://www.brookings.edu/research/addressing-the-other-covid-crisis-corruption/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=91940025&utm_source=hs_email
https://ec.europa.eu/info/sites/info/files/opinion_of_the_iec_on_17_06_19_en.pdf
http://www.bertelsmann-stiftung.de/fileadmin/files/Projekte/Migration_fair_gestalten/IB_PolicyBrief_Einwanderungsgesetz_082017_ENG.pdf