1. Balfour R, Stratulat C (eds) (2015) EU Member States and enlargement towards the Balkans. European Policy Centre Issue Paper 79. http://aei.pitt.edu/66050/1/pub_5832_eu_member_states_and_enlargement_towards_the_balkans.pdf
2. Bieber F (2012) Introduction. In: Bieber F (ed) EU conditionality in the Western Balkans. Routledge, London
3. Bjelotomić S (2020) Many no longer believe in Serbia’s entry into the EU; support for EU’s membership is taking nosedive. Serbian Monitor, 20 January 2020. https://www.serbianmonitor.com/en/many-no-longer-believe-in-serbias-entry-into-the-eu-support-for-eu-membership-is-taking-a-nosedive/
4. Blockmans S (2007) Tough love: the European Union’s relations with the Western Balkans. T.M.C. Asser Press, The Hague
5. Blockmans S (2009) Raising the threshold for further EU enlargement: process, and problems and prospects. In: Ott A, Vos E (eds) Fifty years of European integration: foundations and perspectives. T.M.C. Asser Press, The Hague, pp 203–220