Białkiewicz, J., and S. Piechnik. “Parametrization of the Odqvist’s Creep Law in the Circular-Symmetrical Problem”. Engineering Transactions 25, no. 4 (December 30, 1977): 621–632. Accessed June 12, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/2207.