Hung, D. Q., R. Shakirov, I. Iugai, N. V. Diep, L. D. Anh, M. D. Dong, B. V. Nam, and Y. Telegin. “A Study on the Relationship Between Gas-Geochemical Field and Tectonic Fault Activities in the Rivermouth Area of Northwestern Gulf of Tonkin”. Vietnam Journal of Marine Science and Technology, vol. 19, no. 2, Sept. 2019, pp. 191-8, doi:10.15625/1859-3097/19/2/14036.