Ostrowska-Maciejewska, J., and J. Rychlewski. “Generalized Proper States for Anisotropic Elastic Materials”. Archives of Mechanics 53, no. 4-5 (October 31, 2001): 501–518. Accessed March 3, 2026. https://am.ippt.pan.pl/index.php/am/article/view/v53p501.