
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/652285/Joint_Ministerial_Committee_communique.pdf

http://news.sky.com/story/theresa-may-theres-no-economic-case-for-breaking-up-the-uk-10787816

https://publications.parliament.uk/pa/bills/cbill/2017-2019/0005/18005.pdf