POPEL, M. V. The cloud technologies for mathematics teachers training. CTE Workshop Proceedings, Kryvyi Rih, Ukraine, v. 2, p. 301–308, 2014. DOI: 10.55056/cte.225. Disponível em: https://acnsci.org/journal/index.php/cte/article/view/225.. Acesso em: 25 jun. 2026.