[1]
A. Gałka, B. Gambin, and J. Telega, “Variational bounds on the effective moduli of anisotropic piezoelectric composites”, Arch. Mech., vol. 50, no. 4, pp. 675–689, Jan. 1998, Accessed: Jan. 17, 2026. [Online]. Available: http://am.ippt.gov.pl/index.php/am/article/view/v50p675