Pastarus J-R, Sabanov S, Shestakova J, Nikitin O. RISK ANALYSIS OF THE PILLAR STRENGTH IN THE ESTONIA MINE. ETR [Internet]. 2015 Aug. 3 [cited 2024 Nov. 21];1:19-23. Available from: https://journals.rta.lv/index.php/ETR/article/view/1113