G. Nunes, G. Martins, C. Forster, and A. Lorena.
" Using instance hardness measures in curriculum learning", in <em>Anais do XVIII Encontro Nacional de Inteligência Artificial e Computacional</em>, Evento Online, 2021, pp. 177-188, doi: <a href="https://doi.org/10.5753/eniac.2021.18251">https://doi.org/10.5753/eniac.2021.18251</a>.