J. Santos, J. Sousa, R. Mello, C. Cristino, and G. Alves. " Analysis of Dropout and the Impact of Student Retention in Higher Education with Absorbing Markov Chains", in Proceedings of the 21st Workshop on Performance of Computer and Communication Systems, NiterĂ³i, 2022, pp. 49-59, doi: https://doi.org/10.5753/wperformance.2022.223211.