RACA, M.; TORMEY, R.; DILLENBOURG, P. Sleepers’ Lag – Study on Motion and Attention. Journal of Learning Analytics, [S. l.], v. 3, n. 2, p. 239-260, 2016. DOI: 10.18608/jla.2016.32.12. Disponível em: https://learning-analytics.info/index.php/JLA/article/view/4266. Acesso em: 10 sep. 2024.