
http://www.reuters.com/article/us-britain-eu-verhofstadt-idUSKBN19V0WP

https://ec.europa.eu/commission/commissioners/2014-2019/andriukaitis/blog/likening-eu-ussr-not-unreasonable_en

https://www.socialeurope.eu/wp-content/uploads/2018/05/BP1-Devolution.pdf