
https://www.socialeurope.eu/wp-content/uploads/2019/10/Europe-2025-eBook.pdf

https://www.global-counsel.co.uk/sites/default/files/analysis/insight/download/Hard%20and%20Soft%20Political%20Risk.pdf

http://oegfe.at/wordpress/wp-content/uploads/2017/05/OEGfE_Policy_Brief-2017.13.pdf