http://docs.dpaq.de/10395-0216-euco-conclusions.pdf
http://ec.europa.eu/social/main.jsp?catId=1143&intPageId=3193&langId=en/
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/638135/6.3703_DEXEU_Northern_Ireland_and_Ireland_INTERACTIVE.pdf
https://ukandeu.ac.uk/explainers/the-european-political-community/