A new empirical approach to estimate the ratio of horizontal to vertical in-situ stress and evaluation of its effect on the stability analysis of underground spaces. Rud.-geol.-naft. zb. [Internet]. 2022 May 31 [cited 2025 Aug. 18];37(3):97-107. Available from: https://ojs.srce.hr/index.php/rgn/article/view/20720