https://www.bruegel.org/analysis/defending-europe-without-us-first-estimates-what-needed
https://www.ifs.org.uk/uploads/Presentations/Carl%20Emmerson%2C%202017%20General%20Election%2C%20manifesto%20analysis.pdf
http://www.eba.europa.eu/documents/10180/2101654/Letter+to+MEPs+on+the+request+to+investigate+a+possible+BUL+under+Article+17+of+Regulation+%28EU%29%20No+10932010+-+24092018.pdf
https://www.diepresse.com/5837400/fluchtiger-wirecard-manager-war-geheimer-fpo-informant