https://ukandeu.ac.uk/the-debt-brake-and-germanys-international-competitiveness/
https://www.esri.ie/system/files/publications/SUSTAT123_2.pdf
https://knowledge.wharton.upenn.edu/article/groupe-psa-fiat-chrysler-merger-smart-consolidation/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2020-01-28
https://www.ft.com/content/36ae6198-9ee1-4144-96c1-039bd7e32893