http://blogs.lse.ac.uk/brexit/2018/11/23/hubert-butler-essay-prize-what-happened-to-europe-without-frontiers/
https://www.chba.org.uk/for-members/library/overseas-seminars/the-status-of-gibraltar-under-eu-law
https://publications.parliament.uk/pa/ld201719/ldselect/ldppdm/106/106.pdf
http://spinelligroup.eu/sites/spinelli/files/2018_manifesto_en.pdf
https://www.bti-project.org/en/data/rankings/status-index/
https://www.whitehouse.gov/wp-content/uploads/2018/10/The-Opportunity-Costs-of-Socialism.pdf
https://www.opendemocracy.net/can-europe-make-it/torgeir-e-fj-rtoft/on-failures-of-western-russia-policies-and-what-to-do-about-th?utm_source=Daily+Newsletter&utm_campaign=fced5f1923-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-fced5f1923-407405485
https://www.ohchr.org/Documents/Issues/Poverty/EOM_GB_16Nov2018.pdf
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/756374/14_November_Draft_Agreement_on_the_Withdrawal_of_the_United_Kingdom_of_Great_Britain_and_Northern_Ireland_from_the_European_Union.pdf
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef18019en.pdf