NGUYEN, C. K., NGUYEN, V. T. i NGUYEN, V. Q. (2022) „Assessing the current status of underground mine ventilation system in ThanhCong- CaoThang area, HonGai coal company, QuangNinh region, Vietnam”, Inżynieria Mineralna, 2(2). doi: 10.29227/IM-2019-02-56.