
https://www.gov.uk/government/news/david-davis-teesport-speech-implementation-period-a-bridge-to-the-future-partnership-between-the-uk-eu

https://publiclawforeveryone.com/2017/06/10/does-the-salisbury-convention-apply-during-a-hung-parliament/

https://uk.finance.yahoo.com/news/businesss-government-lobbying-brexit-isnt-working-heres-143415309.html