KALIR, J. H. Open Web annotation as collaborative learning. First Monday, [S. l.], v. 24, n. 6, 2019. DOI: 10.5210/fm.v24i6.9318. Disponível em: https://firstmonday.org/ojs/index.php/fm/article/view/9318. Acesso em: 22 sep. 2021.