https://irpimedia.irpi.eu/covid19-coronavirus-liberta-stampa/
https://www.brookings.edu/essay/the-wall-the-real-costs-of-a-barrier-between-the-united-states-and-mexico/?utm_campaign=brookings-comm&utm_source=hs_email&utm_medium=email&utm_content=55521719
https://www.imf.org/external/pubs/ft/fandd/2021/12/pdf/Kimball.pdf
https://www.europarl.europa.eu/doceo/document/A-9-2023-0189_EN.html