https://www.politico.eu/article/thierry-breton-eu-commission-ursula-von-der-leyen-vp-is-quietly-angling-for-the-eus-top-job/
http://www.ips-journal.eu/regions/europe/article/show/free-spirits-2331/
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1708en.pdf