https://www.boeckler.de/pdf/p_imk_report_141e_2018.pdf
https://www.socialeurope.eu/shareholder-value-versus-the-public-good-the-case-of-germany
https://www.baua.de/DE/Angebote/Publikationen/Berichte/F2398.pdf?__blob=publicationFile&v=3
https://www.socialeurope.eu/ais-impact-on-europes-job-market-a-call-for-a-social-compact