https://www.etui.org/content/download/36365/365328/file/WP+2019+07-wages-ST-WEB.pdf
https://transparency.eu/burning-candle-mep-income/
http://www.russellgroup.ac.uk/media/5521/rg-international-students-june-2017.pdf
https://www.ons.gov.uk/employmentandlabourmarket/peopleinwork/earningsandworkinghours/articles/contractsthatdonotguaranteeaminimumnumberofhours/may2017