S. Onaka, “Deformation behavior and stress states of a diffusional creeping polycrystal with bimodal grain-size distribution”, Arch. Mech., vol. 62, no. 4, pp. 241–251, Sep. 2010, Accessed: Jan. 17, 2026. [Online]. Available: http://am.ippt.gov.pl/index.php/am/article/view/v62p241