KIYANOVSKA, Nataliya Mihailivna. Free and open source cloud technology based on the type Software as a Service. CTE Workshop Proceedings, Kryvyi Rih, Ukraine, v. 4, p. 52–58, 2017. DOI: 10.55056/cte.324. Disponível em: https://acnsci.org/journal/index.php/cte/article/view/324.. Acesso em: 6 may. 2026.