
http://www.express.co.uk/news/uk/840143/DNA-English-villages-foreigners-residents-study

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/680185/Governor_letter_to_CX_-_Feb_2018.pdf

https://www.ft.com/content/ed91e91a-87f2-11e7-8bb1-5ba57d47eff7