https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1609en.pdf
http://blogs.lse.ac.uk/brexit/2018/07/09/british-influence-in-brussels-had-been-far-greater-than-recognised/
https://www.access-info.org/article/29101
https://www.socialeurope.eu/the-good-man-from-traiskirchen