Chraptovič, Ela, and Juozas Atkočiūnas. “Role of Kuhn-Tucker Conditions in Elasticity Equations in Terms of Stresses”. Journal of Civil Engineering and Management 6, no. 2 (April 30, 2000): 104-112. Accessed April 20, 2024. https://journals.vilniustech.lt/index.php/JCEM/article/view/9259.