Mai HD, Nguyen TT. Biostratigraphic characteristics and correction of the boundary between Miocene and Oligocene sediments in the northern Malay - Tho Chu basin. PVJ [Internet]. 2022Jul.4 [cited 2024Dec.1];50:19 -27. Available from: https://pvj.com.vn/index.php/TCDK/article/view/831