http://blogs.sussex.ac.uk/uktpo/files/2017/11/Briefing-Paper-11.pdf
https://eupinions.eu/index.php?id=12463
https://www.bloomberg.com/opinion/articles/2020-12-18/britain-and-europe-s-fish-fight-reveals-ultimate-brexit-truths
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/502291/54284_EU_Series_No1_Web_Accessible.pdf