https://www.socialeurope.eu/2017/06/mercron-franco-german-tandem-back-berlins-terms/
https://www.crisisgroup.org/es/latin-america-caribbean/andes/venezuela/101-navigating-venezuelas-political-deadlock-road-elections
https://www.dbresearch.de/PROD/RPS_DE-PROD/PROD0000000000523908/Deutschland%3A_Konjunktur_kurzgefasst.PDF
https://www.propublica.org/article/how-private-nonprofits-ultrawealthy-tax-deductions-museums-foundation-art