Czarnecki S, Lewiński T. Shaping the stiffest three-dimensional structures from two given isotropic materials. Comp. Assist. Methods Eng. Sci. [Internet]. 2006 Mar. 31 [cited 2026 Feb. 23];13(1):53-8. Available from: https://cames.ippt.pan.pl/index.php/cames/article/view/964