Hoan, Hoàng Văn, Phạm Quý Nhân, Đặng Đức Nhận, FLEMMING LARSEN, WAGNER FRANK, ROLAND PURTSCHERT, and CHRISTOPH GERBER. “Hydrological Characteristics of Groundwater in the Nam Dinh Area from Isotopic Results”. Vietnam Journal of Earth Sciences 35, no. 2 (February 19, 2014): 120–129. Accessed April 19, 2024. https://vjs.ac.vn/index.php/jse/article/view/3655.