Xuân, Nguyễn Đình, Hoàng Minh, and Nguyễn Thuý Anh. “ON MODELLING LOCAL LOOPS FOR DIGITAL SUBSCRIBER LINE (DSL)”. Vietnam Journal of Science and Technology 48, no. 1 (June 22, 2012). Accessed March 19, 2026. https://cip.vast.vn/jst/article/view/1083.