http://www.ips-journal.eu/regions/europe/article/show/battle-of-the-bulldogs-2063/
https://ukandeu.ac.uk/brexits-implications-for-environmental-policy/
https://ec.europa.eu/commission/sites/beta-political/files/police_judicial_cooperation_in_criminal_matters_0.pdf
http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6448&CESifoWP.search=+