OLEKSANDR, M.; DOMRACHEVA, K.; BOKLA, N.; SHESTOPAL, I. EVALUATION OF FREQUENCY RESOURCES OF FOCL WITH THE USE OF NEW TECHNOLOGIES. Information and Telecommunication Sciences, [S. l.], n. 2, p. 32–37, 2017. DOI: 10.20535/2411-2976.22017.32-37. Disponível em: https://infotelesc.kpi.ua/article/view/119921. Acesso em: 18 aug. 2025.