S. Jemioło and M. Kwieciński, “On Irreducible Number of Invariants and Generators in the Constitutive Relationships”, Eng. Trans., vol. 39, no. 2, pp. 241–253, Jul. 1991, Accessed: Jun. 10, 2025. [Online]. Available: https://et3.ippt.pan.pl/index.php/et/article/view/1625