1. Agresti, A., Klingenberg, B.: Multivariate tests comparing binomial probabilities, with application to safety studies for drugs. Appl. Stat. 54, 691–706 (2005)
2. Arboretti Giancristofaro, R., Bonnini, S.: Permutation tests for heterogeneity comparisons in presence of categorical variables with application to university evaluation. Adv. Methodol. Stat. 4, 1, 21–36 (2007)
3. Arboretti Giancristofaro, R., Bonnini, S., Pesarin, F.: Comparisons of heterogeneity: a nonparametric test for the multisample case. In: Lopez-Fidalgo, J., Rodriguez-Diaz, J.M., Torsney, B. (eds.) mODa 8 – Advances in Model-Oriented Design and Analysis, pp. 17–24. Physica-Verlag, Heidelberg (2007)
4. Arboretti Giancristofaro, R., Bonnini, S., Pesarin, F., Salmaso, L.: One-sided and two-sided nonparametric tests for heterogeneity comparisons. Statistica LXVIII(1), 57–69 (2008)
5. Arboretti Giancristofaro, R., Bonnini, S., Salmaso, L.: Employment status and education/employment relationship of PhD graduates from the University of Ferrara. J. Appl. Stat. 36(12), 1329–1344 (2009)