ŁUKASIAK, Tomasz. “Two-Phase Isotropic Composites of Extremal Moduli. The Inverse Homogenization Problem”.
Engineering Transactions
65, no. 1 (March 20, 2017): 31–38. Accessed July 13, 2025.
https://et.ippt.pan.pl/index.php/et/article/view/759
.