Ferrão, M.E. & Dias, J. G. (2013). Concomitant latent class models applied to mathematics education. In Lita da Silva, J., Caeiro, F., Natário, I., Braumann, C.A. (Ed.), Advances in Regression, Survival Analysis, Extreme Values, Markov Processes and Other Statistical Applications. (pp. 147-153). Berlim: Springer.