Tyukalov, Yury. “BULK THEORY ELASTICITY FINITE ELEMENT BASED ON PIECEWISE CONSTANT APPROXIMATIONS OF STRESSES”. International Journal for Computational Civil and Structural Engineering, vol. 19, no. 1, Mar. 2023, pp. 168-77, https://doi.org/10.22337/2587-9618-2023-19-1-168-177.