1. Baker, B.D. 2001. Can flexible non-linear modeling tell us anything new about educational productivity? Economics of Education Review 20 (1): 81–92.
2. Bonaccorsi, A., and C. Daraio, eds. 2007. Universities and strategic knowledge creation: Specialization and performance in Europe. Cheltenham: Edward Elgar Publishing.
3. Charnes, A., W.W. Cooper, and E. Rhodes. 1978. Measuring the efficiency of decision making units. European Journal of Operational Research 2 (6): 429–444.
4. Daraio, C., and L. Simar. 2007. Advanced robust and nonparametric methods in efficiency analysis: Methodology and applications. New York: Springer Science & Business Media.
5. Daraio, C., A. Bonaccorsi, and L. Simar. 2015a. Rankings and university performance: A conditional multidimensional approach. European Journal of Operational Research 244 (3): 918–930.