Liridon Lika from the Centre for International Relations Studies (CEFIR) - presented his research on "The return of Turkey to the Western Balkans: a challenge or an opportunity for the European Union ?", during the IAPSS Winter School 2015 "Turkey, the EU & the Middle East: Political Transformation & Challenges for Future Cooperation (February 1st - February 7th, 2015), in Sakarya, Turkey.