Dao, T., M. L. Huy, B. Carter, Q. Le, T. T. Trinh, B. N. Phan, and Y. Otsuka. “New Observations of the Total Electron Content and Ionospheric Scintillations over Ho Chi Minh City”. Vietnam Journal of Earth Sciences, vol. 42, no. 4, Sept. 2020, pp. 320-33, doi:10.15625/0866-7187/42/4/15281.