Le, Tien Dung, Dinh Hieu Vu, and Anh Tuan Nguyen. “Characteristics of Top Coal Fall in Front of Face Support in Longwall: A Case Study”. <i>Vietnam Journal of Earth Sciences</i> 42, no. 2 (May 9, 2020): 152–160. Accessed April 2, 2026. https://cip.vast.vn/jse/article/view/14955.