[1]
TRAN , T.M., DO , N.T., DANG , T.T., NGUYEN , D.P. i VO , T.H. 2021. Stabilization of Deep Roadways in Weak Rocks Using the System of Two-level Rock Bolts. Inżynieria Mineralna. 1, 2 (grudz. 2021). DOI:https://doi.org/10.29227/IM-2021-02-13.