Aissi, A. et al. 2019. Slope stability assessment in the opencast quarry in Hammam Dalaa (M’sila, Algeria). Visnyk of Taras Shevchenko National University of Kyiv. Geology. 2, 85 (Jun. 2019), 8–13. DOI:https://doi.org/10.17721/1728-2713.85.01.