Tutanov, S., M. Tutanov, and M. Tutanova. “A Mathematical Model for Determining the Influence of Factors on the Stability of Pillars and Cameras”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources, vol. 314, no. 3, July 2020, pp. 15-21, doi:10.31643/2020/6445.22.