[1]
DUONG DUC, H., QUANG , D.H., TUREK, M. i KOTERAS, A. 2022. The status and prospect of mining technology in Vietnam underground coal mines. Inżynieria Mineralna. 2, 2 (sty. 2022). DOI:https://doi.org/10.29227/IM-2019-02-68.