
https://www.cips.org/en/news/news/businesses-preparing-to-sever-supply-chain-ties-between-the-uk-and-the-eu-to-avoid-brexit-tariffs/

http://www.ilo.org/wcmsp5/groups/public/—dgreports/—cabinet/documents/genericdocument/wcms_371208.pdf

http://www.europarl.europa.eu/RegData/etudes/IDAN/2017/599352/EPRS_IDA%282017%29599352_EN.pdf