Pho, Nguyen Van. “An Extension of the E. Melan’s Shakedown Theorem of the Elasto-Plastic Structure”. <i>Vietnam Journal of Mechanics</i> 14, no. 2 (June 30, 1992): 23–27. Accessed November 9, 2025. https://vjmech.vast.vn/vjmech/article/view/10230.