EU The Costs and Benefits of International Students by Parliamentary Constituency

https://blogs.lse.ac.uk/brexit/2019/11/04/would-a-more-educated-population-have-rejected-brexit/

Tilis February 16, 2020

http://www.ips-journal.eu/regions/europe/article/show/game-set-and-match-2118/

Tilis June 21, 2017

https://www.brookings.edu/blog/education-plus-development/2020/04/29/the-covid-19-cost-of-school-closures/

Tilis August 5, 2020