CUONG, Nguyen Kim; 						NGOC ANH, Giap; 						MINH TUAN, Bui.
 Characterization of Oceanographic Fields  in the Gulf of Tonkin and Their Relationship  with ENSO Using Cluster Analysis.
<strong>VNU Journal of Science: Earth and Environmental Sciences</strong>, [S.l.], v. 41, n. 1S, nov. 2025.
ISSN 2588-1094.
Available at: &lt;<a href="https://js.vnu.edu.vn/EES/article/view/5403" target="_new">https://js.vnu.edu.vn/EES/article/view/5403</a>&gt;. Date accessed: 12 jan. 2026.
doi: <a href="https://doi.org/10.25073/2588-1094/vnuees.5403">https://doi.org/10.25073/2588-1094/vnuees.5403</a>.