1. Bache, Ian, Stephen George and Simon Bulmer. 2011. Politics in the European Union. Oxford: Oxford Univ. Press.
2. BBC News. 2010. Ethnic clash in Kosovo after Serb basketball defeat.
http://www.bbc.co.uk/news/world-europe-11274357
.
3. Bigo, Didier, Sergio Carrera, Elspeth Guild and Rob Walker. 2010. Europe’s 21st century challenge: Delivering liberty and security. London: Ashgate.
4. Bures, O. 2008. Europol’s fledgling counterterrorism role. Terrorism and Political Violence 20 (4): 498–517.
5. Carrapico, Helena, Daniela Irrera and Bill Tupman. 2014. Transnational organised crime and terrorism: Different peas, same pod? Global Crime 15 (3–4): 213–218.