1. Aristovnik, A. & Pungartnik, A. (2009). Analysis of reaching the Lisbon strategy targets at the national level: the EU-27 and Slovenia. Munich Personal Repec Archive Paper, No. 18090, Munich: REPEC.
2. Barroso, J. M. (2010). Europe: 2020. Presentation to the Informal European Council of 11, February 2010, Brussels.
3. Böhringer, C., Rutherford, T., & Tol, R. (2009). The EU 20/20/2020 targets: An overview of the EMF22 assessment. Energy Economics, 31(2), 268–273.
4. Booysen, F. (2002). An overview and evaluation of composite indices of development. Social Indicators Research, 59(2), 115–151.
5. Codogno, L., Odinet, G., & Padrini, F. (2009). The use of targets in the Lisbon strategy. Economic focus, No. 14. Rome: Ministry of Economy and Finance.