L. Rodrigues, A. Toda, W. Oliveira, P. Palomino, and S. Isotani.
" Just beat it: Exploring the influences of competition and task-related factors in gamified learning environments", in Anais do XXXI Simpósio Brasileiro de Informática na Educação, Online, 2020, pp. 461-470, doi: https://doi.org/10.5753/cbie.sbie.2020.461.