https://www.ecb.europa.eu/stats/accesstofinancesofenterprises/pdf/ecb.safe202005~c4b89a43b9.en.pdf
https://www.brookings.edu/wp-content/uploads/2021/06/financial-stability_report.pdf
https://www.socialeurope.eu/2017/05/rethinking-german-economic-policy/
https://www.boeckler.de/pdf/p_imk_study_55_2017.pdf