https://socialeurope.eu/why-a-new-university-of-labour
http://uk2070.org.uk/wp-content/uploads/2020/02/UK2070-FINAL-REPORT.pdf
http://sprc.info/wp-content/uploads/2012/07/Polish-Migrants-in-London-extending-the-stay.pdf
https://www.esri.ie/system/files/publications/SUSTAT95_0.pdf