http://The EU Won’t Help a Weakened Theresa May
http://blogactiv.eu/blog/2012/05/15/stumbling-towards-the-brexit/
https://committees.parliament.uk/oralevidence/2766/pdf/
http://www.progressives-zentrum.org/wp-content/uploads/2018/10/Les-Oubliés-Entretiens-sur-les-terres-où-prospère-le-vote-extrême_Das-Progressive-Zentrum_Johannes-Hillje.pdf