https://www.publications.parliament.uk/pa/cm201617/cmselect/cmwomeq/799/799.pdf
http://www.migrationobservatory.ox.ac.uk/resources/commentaries/brexodus-migration-and-uncertainty-after-the-eu-referendum/
https://www.socialeurope.eu/wp-content/uploads/2019/01/03_Brexit_Kroeger.pdf
https://policyexchange.org.uk/wp-content/uploads/2017/07/Farming_Tomorrow.pdf