Mykhailovska, Olena, Viktoriia Rubel, Olena Oleksiienko, and Maryna Petruniak. 2018. “Stress-Strain Rock State Evaluation Method Around Deep Well”. International Journal of Engineering and Technology 7 (4.8): 312-17. https://doi.org/10.14419/ijet.v7i4.8.27262.