Olijnik, A. P., Feshanych, L. I., & Chernyshov, M. Y. (2022). MATHEMATICAL MODELING OF THE DEFORMATION PROCESS OF PIPELINES OPERATING IN UNDERGROUND AND ABOVE-GROUND MODES. METHODS AND DEVICES OF QUALITY CONTROL, (2(49), 89–94. https://doi.org/10.31471/1993-9981-2022-2(49)-89-94