ANDRONOVA, K. S.; LEVYKIN, I. V. Exploring cloud technology to create a virtual learning system. CTE Workshop Proceedings, Kryvyi Rih, Ukraine, v. 1, p. 43–44, 2013. DOI: 10.55056/cte.81. Disponível em: https://acnsci.org/journal/index.php/cte/article/view/81.. Acesso em: 18 jun. 2025.