Αλεξίου (Alexiou) Λ. (Labrini) Ν. Teaching mathematical concepts using web-based collaborative enviroments. An eTwinning case study. Open Education: The Journal for Open and Distance Education and Educational Technology, [S. l.], v. 15, n. 1, p. 111–124, 2019. DOI: 10.12681/jode.18964. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/openjournal/article/view/18964. Acesso em: 18 sep. 2024.