https://www.socialeurope.eu/corporate-taxation-financing-state-and-welfare
https://www.imk-boeckler.de/download-proxy-for-faust/download-pdf?url=http%3A%2F%2F217.89.182.78%3A451%2Fabfrage_digi.fau%2Fp_imk_pb_98_2020.pdf%3Fprj%3Dhbs-abfrage%26ab_dm%3D1%26ab_zeig%3D9110%26ab_diginr%3D8482
https://www.eppo.europa.eu/en/news/italy-56-people-and-two-companies-indicted-criminal-association-aimed-systemic-agricultural
https://wiiw.ac.at/oeffentliche-investitionen-und-sozialstaat-perspektiven-der-budgetpolitik-im-kontext-von-energiekrise-klimawandel-und-eu-budgetregeln-dlp-6484.pdf