RIEL, J.; LAWLESS, K. A.; BROWN, S. W. Timing Matters: Approaches for Measuring and Visualizing Behaviours of Timing and Spacing of Work in Self-Paced Online Teacher Professional Development Courses. Journal of Learning Analytics, [S. l.], v. 5, n. 1, p. 25–40, 2018. DOI: 10.18608/jla.2018.51.3. Disponível em: https://learning-analytics.info/index.php/JLA/article/view/5421. Acesso em: 11 dec. 2023.