1. European Union countries by GDP (2018).
http://statisticstimes.com/economy/european-union-countries-by-gdp.php
2. Sharp fall in illegal migration to EU. BBC News (2019).
https://www.bbc.com/news/world-europe-46764500
3. Terrorism in the EU: terror attacks, deaths and arrests (2018).
http://Europarl.europa.eu
4. Atnashev, V.: Impact of Islamophobia and human rights: the radicalization of Muslim communities. In: Dawoody, A. (ed.) Eradicating Terrorism from the Middle East, pp. 91–105. Springer (2016).
https://doi.org/10.1007/978-3-319-31018-3_5
5. European commission against racism and intolerance. General policy recommendation N° 8 on combating racism while fighting terrorism (2004)