Hoang, Tha Van, Anna Wysocka, Pha Dong Phan, Cuong Quoc Nguyen, and Piotr Ziólkowski. “Lithofacies and Depositional Environments of the Paleogene Neogene Sediments in the Hoanh Bo Basin (Quang Ninh Province - NE Vietnam)”.
Geology, Geophysics and Environment 41, no. 4 (March 15, 2016): 353. Accessed April 12, 2025.
https://journals.agh.edu.pl/geol/article/view/1681.