https://www.ecb.europa.eu/pub/pdf/ecbu/eb201703.en.pdf?ea7747ab0ef3b038300a8d51a3a95313
http://www.ips-journal.eu/topics/european-union/article/show/eu-assurance-co-2037/
CONTEXT ROLE OF GERMANY THE TAXES CONSIDERED GRAND THEMES OF THE EUROPEAN DIALOGUE ECONOMIC ...
https://onlinelibrary.wiley.com/doi/10.1111/ecaf.12565