
https://economy-finance.ec.europa.eu/document/download/f5827354-8501-49cb-bf2d-13f2f7a9444f_en?filename=dp199_en.pdf

http://www.ebrd.com/news/events/ebrd-transition-report-201718.html

https://www.dbresearch.de/PROD/RPS_DE-PROD/PROD0000000000523908/Deutschland%3A_Konjunktur_kurzgefasst.PDF