https://www.socialeurope.eu/corporate-taxation-financing-state-and-welfare
http://invs.santepubliquefrance.fr/publications/etat_sante_2017/ESP2017_Synthese.pdf
http://www.imf.org/en/News/Articles/2017/05/15/mcs05152017-Germany-Staff-Concluding-Statement-of-the-2017-Article-IV-Mission
https://www.rijksoverheid.nl/binaries/rijksoverheid/documenten/kamerstukken/2022/04/04/joint-paper-eurogroup-es-nl/joint-paper-eurogroup-es-nl.pdf