https://www.opendemocracy.net/uk/brexitinc/james-cusick-adam-ramsay-crina-boros/revealed-tory-mps-using-taxpayers-cash-to-fund-sec?utm_source=Daily+Newsletter&utm_campaign=bd60eeeba0-DAILY_NEWSLET
https://blogs.sussex.ac.uk/uktpo/2018/02/15/sustainability-impact-assessment-for-post-brexit-britain/
https://www.regjeringen.no/globalassets/upload/kilde/fkd/red/2004/0009/ddd/pdfv/228920-nilf_rapport_2004_9_s.pdf