Zeitinova, S., A. Imashev, A. Suimbayaeva, R. Alzhanov, and D. Makhmudov. “Assessment of the Stability of the Underworked Sides and Ledges of the Quarry to Determine the Area of Possible Location of the Shaft”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources, vol. 325, no. 2, Oct. 2022, pp. 72-79, doi:10.31643/2023/6445.20.