https://data.oecd.org/natincome/net-lending-borrowing-by-sector.htm
https://www.europarl.europa.eu/RegData/etudes/IDAN/2021/699811/IPOL_IDA%282021%29699811_EN.pdf
https://www.politico.eu/article/eu-warn-financial-risk-andorra-monaco-san-marino/
https://www.bloomberg.com/news/articles/2020-04-03/the-virus-will-force-europe-to-make-a-decision-about-italy?cmpid=BBD040320_CORONAVIRUS&utm_medium=email&utm_source=newsletter&utm_term=200403&utm_campaign=coronavirus